Set FROM field on emails (#55)

Fixes #54

Reviewed-on: data.coop/membersystem#55
Co-authored-by: Benjamin Bach <benjamin@overtag.dk>
Co-committed-by: Benjamin Bach <benjamin@overtag.dk>

.dockerignore

@@ -0,0 +1,10 @@
+*
+.*
+*/.*
+
+!src/
+!requirements.txt
+!requirements/
+!entrypoint.sh
+!pyproject.toml
+!README.md

.drone.yml

@@ -0,0 +1,25 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: docker
+    image: plugins/docker
+    environment:
+      BUILD: "${DRONE_COMMIT_SHA}"
+    settings:
+      repo: docker.data.coop/membersystem
+      registry: docker.data.coop
+      username:
+        from_secret: DOCKER_USERNAME
+      password:
+        from_secret: DOCKER_PASSWORD
+      build_args_from_env:
+        - BUILD
+      tags:
+        - "${DRONE_BUILD_NUMBER}"
+        - "latest"
+    when:
+      branch:
+        - main

.env.example

@@ -0,0 +1,10 @@
+SECRET_KEY=something-very-random
+POSTGRES_HOST=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_PORT=5432
+DATABASE_URL=postgres://postgres:postgres@postgres:5432/postgres
+# Use something along the the following if you are not using docker
+# DATABASE_URL=postgres://postgres:postgres@localhost:5432/datacoop_membersystem
+DEBUG=True
+STRIPE_API_KEY=sk_test_
+STRIPE_ENDPOINT_SECRET=whsec_

.gitignore

@@ -2,5 +2,13 @@ __pycache__/
 *.pyc
 *.sw*
 db.sqlite3
-project/settings/local.py
 .pytest_cache
+.idea/
+*.mo
+.env
+venv/
+.venv/
+
+
+# collectstatic
+src/static/

.pre-commit-config.yaml

@@ -1,23 +1,37 @@
+default_language_version:
+  python: python3
+exclude: ^.*\b(migrations)\b.*$
 repos:
-- repo: git://github.com/pre-commit/pre-commit-hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v2.3.0
+    rev: v4.6.0
     hooks:
-  - id: trailing-whitespace
+      - id: check-ast
-  - id: flake8
+      - id: check-merge-conflict
-    args: [--max-line-length=120, --exclude=*/migrations/*]
+      - id: check-case-conflict
-  - id: check-yaml
+      - id: detect-private-key
       - id: check-added-large-files
-  - id: debug-statements
+      - id: check-json
-  - id: end-of-file-fixer
+      - id: check-symlinks
       - id: check-toml
-- repo: https://github.com/asottile/reorder_python_imports
+      - id: end-of-file-fixer
-  rev: v1.6.1
+      - id: trailing-whitespace
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: 'v0.5.2'
     hooks:
-    - id: reorder-python-imports
+      - id: ruff
-      types: [file, python]
+        args:
-- repo: https://github.com/psf/black
+          - --fix
-  rev: stable
+      - id: ruff-format
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.16.0
     hooks:
-  - id: black
+      - id: pyupgrade
-    language: python
+        args:
-    types: [file, python]
+          - --py311-plus
+        exclude: migrations/
+  - repo: https://github.com/adamchainz/django-upgrade
+    rev: 1.19.0
+    hooks:
+      - id: django-upgrade
+        args:
+          - --target-version=5.0

Dockerfile

@@ -0,0 +1,53 @@
+FROM python:3.12-slim-bookworm
+
+# PYTHONFAULTHANDLER: Propagate tracebacks from all threads.
+# PYTHONUNBUFFERED: Write terminal output straight to docker (to not confuse Docker Compose).
+# PYTHONDONTWRITEBYTECODE: Dont write *pyc files at all, making it possible for a 100% read-only container.
+# PIP_NO_CACHE_DIR: Disable PIP cache, we don't need pip's cache after building the image.
+# PIP_DISABLE_PIP_VERSION_CHECK: Build the image with the available pip, do not check for updates (faster!)
+# PIP_DEFAULT_TIMEOUT: Allow for longer timeouts.
+ENV PYTHONFAULTHANDLER=1 \
+  PYTHONUNBUFFERED=1 \
+  PYTHONDONTWRITEBYTECODE=1 \
+  PIP_NO_CACHE_DIR=1 \
+  PIP_DISABLE_PIP_VERSION_CHECK=on \
+  PIP_DEFAULT_TIMEOUT=100
+ARG BUILD
+ENV BUILD=${BUILD}
+ARG REQUIREMENTS_FILE=requirements.txt
+
+WORKDIR /app
+
+RUN groupadd -g 1000 www && useradd -u 1000 -ms /bin/bash -g www www
+
+# Only copy the requirements file first to leverage Docker cache
+RUN mkdir requirements/
+COPY $REQUIREMENTS_FILE $REQUIREMENTS_FILE
+
+RUN mkdir -p /app/src/static && \
+    chown www:www /app/src/static && \
+    apt-get update && \
+    apt-get install -y \
+     binutils \
+     libpq-dev \
+     build-essential \
+     netcat-openbsd \
+     libcairo2 \
+     libpango-1.0-0 \
+     libpangocairo-1.0-0 \
+     libgdk-pixbuf2.0-0 \
+     libffi-dev \
+     shared-mime-info \
+     gettext && \
+    pip install --no-cache-dir -r $REQUIREMENTS_FILE
+
+# Copy the rest of the application
+COPY . .
+
+RUN django-admin compilemessages
+
+ENTRYPOINT ["./entrypoint.sh"]
+
+EXPOSE 8000
+
+CMD ["uvicorn", "project.asgi:application", "--host", "0.0.0.0", "--port", "8000", "--workers", "3", "--lifespan", "off", "--app-dir", "/app/src"]

Makefile

@@ -1,13 +1,29 @@
-# These are just some make targets, expressing how things
+.PHONY: run makemigrations migrate createsuperuser shell manage_command build requirements
-# are supposed to be run, but feel free to change them!
+DOCKER_COMPOSE = COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1 docker compose
+DOCKER_RUN = ${DOCKER_COMPOSE} run -u `id -u`
+MANAGE_EXEC = python /app/src/manage.py
+MANAGE_COMMAND = ${DOCKER_RUN} app ${MANAGE_EXEC}
 
-dev-setup:
+run:
-	poetry run pre-commit install
+	${DOCKER_COMPOSE} up
-	poetry run python manage.py migrate
-	poetry run python manage.py createsuperuser
 
-lint:
+makemigrations:
-	poetry run pre-commit run --all
+	${MANAGE_COMMAND} makemigrations ${ARGS}
 
-test:
+migrate:
-	poetry run pytest
+	${MANAGE_COMMAND} migrate ${ARGS}
+
+createsuperuser:
+	${MANAGE_COMMAND} createsuperuser
+
+shell:
+	${MANAGE_COMMAND} shell
+
+manage_command:
+	${MANAGE_COMMAND} ${ARGS}
+
+build:
+	${DOCKER_COMPOSE} build
+
+requirements:
+	hatch run requirements

README.md

@@ -1,24 +1,105 @@
-# member.data.coop
+# data.coop member system
 
-To start developing:
+## Development setup
 
-Get poetry
+There are two ways to setup the development environment.
 
-    $ python3 -m pip install --user pipx
+- Using the Docker Compose setup provided in this repository.
-    $ pipx install poetry
+- Using [hatch](https://hatch.pypa.io/) in your host OS.
 
-Run poetry to setup environment
+### Using Docker Compose
 
-    $ poetry install
+Working with the Docker Compose setup is made easy with the `Makefile` provided in the repository.
 
-Run this make target, which installs all the requirements and sets up a development database.
+#### Requirements
 
-    $ make dev-setup
+- Docker
+- docker compose plugin
 
-To run the Django development server:
+#### Setup
 
-    $ poetry run python manage.py runserver
+1. Setup .env file
 
-Before you push your stuff, run tests:
+    An example .env file is provided in the repository. You can copy it to .env file using the following command:
 
-    $ make test
+    ```bash
+    cp .env.example .env
+    ```
+
+    The default values in the .env file are suitable for the docker-compose setup.
+
+2. Migrate
+
+    ```bash
+    make migrate
+    ```
+
+3. Run the development server
+
+    ```bash
+    make run
+    ```
+
+#### Building and running other things
+
+```bash
+# Build the containers
+make build
+
+# Create a superuser
+make createsuperuser
+
+# Create Django migrations (after this, maybe you need to change file permissions in volume)
+make makemigrations
+```
+
+### Using hatch
+
+#### Requirements
+
+- Python 3.12 or higher
+- [hatch](https://hatch.pypa.io/) (Recommended way to install is using `pipx install hatch`)
+- A running PostgreSQL server
+
+#### Setup
+
+1. Setup .env file
+
+    An example .env file is provided in the repository. You can copy it to .env file using the following command:
+
+    ```bash
+    cp .env.example .env
+    ```
+
+    Edit the .env file and set the values for the environment variables, especially the database variables.
+
+2. Run migrate
+
+    ```bash
+    hatch run dev:migrate
+    ```
+
+3. Run the development server
+
+   ```bash
+   hatch run dev:server
+   ```
+
+### Updating requirements
+
+We use hatch-pip-compile. That means we have a set of loosely defined `dependencies` in `pyproject.toml` and then we can keep the exactly pinned version in our `requirements.txt` (auto-generated).
+
+To generate `requirements.txt` and `requirements/requirements-dev.txt`, run the following command:
+
+```bash
+# Build requirements.txt etc
+make requirements
+
+# Build Docker image with new Python requirements
+make build
+```
+
+## Important notes
+
+* This project uses [django-zen-queries](https://github.com/dabapps/django-zen-queries), which will sometimes raise a `QueriesDisabledError` in your templates. You can find a difference of opinion about that, but you can find a difference of opinion about many things, right?
+* If a linting error annoys you, please feel free to strike back by adding a `noqa` to the line that has displeased the linter and move on with life.

docker-compose.yml

@@ -0,0 +1,30 @@
+---
+services:
+  app:
+    build:
+      context: .
+      args:
+        - REQUIREMENTS_FILE=requirements/requirements-dev.txt
+    command: python /app/src/manage.py runserver 0.0.0.0:8000
+    tty: true
+    ports:
+      - "8000:8000"
+    volumes:
+      - ./:/app/
+    depends_on:
+      - postgres
+    env_file:
+      - .env
+
+  postgres:
+    image: postgres:13-alpine
+    volumes:
+      - postgres_data:/var/lib/postgresql/data/
+    ports:
+      - 5432:5432
+    env_file:
+      - .env
+
+volumes:
+  postgres_data:
+...

entrypoint.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+echo "Waiting for postgres..."
+
+POSTGRES_PORT=${POSTGRES_PORT:-5432}
+POSTGRES_HOST=${POSTGRES_HOST:-localhost}
+
+while ! nc -z "$POSTGRES_HOST" "$POSTGRES_PORT"; do
+  sleep 0.1
+done
+
+echo "PostgreSQL started"
+
+# Only migrate, collectstatic and compilemessages if we are NOT in development
+if [ -z "$DEBUG" ]; then
+  python src/manage.py migrate;
+  python src/manage.py collectstatic --no-input;
+  python src/manage.py compilemessages;
+fi
+
+exec "$@"

parked_apps/accounting/admin.py

@@ -1,31 +0,0 @@
-from django.contrib import admin
-from django.utils.translation import gettext_lazy as _
-
-from . import models
-
-
-@admin.register(models.Order)
-class OrderAdmin(admin.ModelAdmin):
-
-    list_display = ("who", "description", "created", "is_paid")
-
-    def who(self, instance):
-        return instance.user.get_full_name()
-
-    who.short_description = _("Customer")
-
-
-@admin.register(models.Payment)
-class PaymentAdmin(admin.ModelAdmin):
-
-    list_display = ("who", "description", "order_id", "created")
-
-    def who(self, instance):
-        return instance.order.user.get_full_name()
-
-    who.short_description = _("Customer")
-
-    def order_id(self, instance):
-        return instance.order.id
-
-    order_id.short_description = _("Order ID")

parked_apps/accounting/apps.py

@@ -1,5 +0,0 @@
-from django.apps import AppConfig
-
-
-class AccountingConfig(AppConfig):
-    name = "accounting"

parked_apps/accounting/models.py

@@ -1,124 +0,0 @@
-from hashlib import md5
-
-from django.conf import settings
-from django.contrib.auth import get_user_model
-from django.db import models
-from django.db.models.aggregates import Sum
-from django.utils.translation import gettext as _
-from django.utils.translation import pgettext_lazy
-from djmoney.models.fields import MoneyField
-
-
-class CreatedModifiedAbstract(models.Model):
-
-    modified = models.DateTimeField(auto_now=True, verbose_name=_("modified"))
-    created = models.DateTimeField(auto_now_add=True, verbose_name=_("created"))
-
-    class Meta:
-        abstract = True
-
-
-class Account(CreatedModifiedAbstract):
-    """
-    This is the model where we can give access to several users, such that they
-    can decide which account to use to pay for something.
-    """
-
-    owner = models.ForeignKey(get_user_model(), on_delete=models.PROTECT)
-
-    @property
-    def balance(self):
-        return self.transactions.all().aggregate(Sum("amount")).get("amount", 0)
-
-
-class Transaction(CreatedModifiedAbstract):
-    """
-    Tracks in and outgoing events of an account. When an order is received, an
-    amount is subtracted, when a payment is received, an amount is added.
-    """
-
-    account = models.ForeignKey(
-        Account, on_delete=models.PROTECT, related_name="transactions"
-    )
-    amount = MoneyField(
-        verbose_name=_("amount"),
-        max_digits=16,
-        decimal_places=2,
-        help_text=_("This will include VAT"),
-    )
-    description = models.CharField(max_length=1024, verbose_name=_("description"))
-
-
-class Order(CreatedModifiedAbstract):
-    """
-    Scoped out: Contents of invoices will have to be tracked either here or in
-    a separate Invoice model. This is undecided because we are not generating
-    invoices at the moment.
-    """
-
-    user = models.ForeignKey(get_user_model(), on_delete=models.PROTECT)
-    account = models.ForeignKey(Account, on_delete=models.PROTECT)
-    is_paid = models.BooleanField(default=False)
-
-    description = models.CharField(max_length=1024, verbose_name=_("description"))
-
-    price = MoneyField(
-        verbose_name=_("price (excl. VAT)"), max_digits=16, decimal_places=2
-    )
-    vat = MoneyField(verbose_name=_("VAT"), max_digits=16, decimal_places=2)
-
-    is_paid = models.BooleanField(default=False, verbose_name=_("is paid"))
-
-    @property
-    def total(self):
-        return self.price + self.vat
-
-    @property
-    def display_id(self):
-        return str(self.id).zfill(6)
-
-    @property
-    def payment_token(self):
-        pk = str(self.pk).encode("utf-8")
-        x = md5()
-        x.update(pk)
-        extra_hash = (settings.SECRET_KEY + "blah").encode("utf-8")
-        x.update(extra_hash)
-        return x.hexdigest()
-
-    class Meta:
-        verbose_name = pgettext_lazy("accounting term", "Order")
-        verbose_name_plural = pgettext_lazy("accounting term", "Orders")
-
-    def __str__(self):
-        return "Order ID {id}".format(id=self.display_id)
-
-
-class Payment(CreatedModifiedAbstract):
-
-    amount = MoneyField(max_digits=16, decimal_places=2)
-    order = models.ForeignKey(Order, on_delete=models.PROTECT)
-
-    description = models.CharField(max_length=1024, verbose_name=_("description"))
-
-    stripe_charge_id = models.CharField(max_length=255, null=True, blank=True)
-
-    @property
-    def display_id(self):
-        return str(self.id).zfill(6)
-
-    @classmethod
-    def from_order(cls, order):
-        return cls.objects.create(
-            order=order,
-            user=order.user,
-            amount=order.total,
-            description=order.description,
-        )
-
-    def __str__(self):
-        return "Payment ID {id}".format(id=self.display_id)
-
-    class Meta:
-        verbose_name = _("payment")
-        verbose_name_plural = _("payments")

parked_apps/membership/admin.py

@@ -1,8 +0,0 @@
-from django.contrib import admin
-
-from . import models
-
-
-@admin.register(models.Membership)
-class MembershipAdmin(admin.ModelAdmin):
-    pass

parked_apps/membership/apps.py

@@ -1,5 +0,0 @@
-from django.apps import AppConfig
-
-
-class MembershipConfig(AppConfig):
-    name = "membership"

parked_apps/membership/migrations/0001_initial.py

@@ -1,227 +0,0 @@
-# Generated by Django 2.0.6 on 2018-06-23 19:07
-from decimal import Decimal
-
-import django.db.models.deletion
-import djmoney.models.fields
-from django.conf import settings
-from django.db import migrations
-from django.db import models
-
-
-class Migration(migrations.Migration):
-
-    initial = True
-
-    dependencies = [migrations.swappable_dependency(settings.AUTH_USER_MODEL)]
-
-    operations = [
-        migrations.CreateModel(
-            name="Membership",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                (
-                    "modified",
-                    models.DateTimeField(auto_now=True, verbose_name="modified"),
-                ),
-                (
-                    "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
-                ),
-                (
-                    "can_vote",
-                    models.BooleanField(
-                        default=False,
-                        help_text="Indicates that the user has a democratic membership of the organization.",
-                        verbose_name="can vote",
-                    ),
-                ),
-            ],
-            options={
-                "verbose_name": "membership",
-                "verbose_name_plural": "memberships",
-            },
-        ),
-        migrations.CreateModel(
-            name="Organization",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                (
-                    "modified",
-                    models.DateTimeField(auto_now=True, verbose_name="modified"),
-                ),
-                (
-                    "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
-                ),
-                ("name", models.CharField(max_length=64, verbose_name="name")),
-            ],
-            options={
-                "verbose_name": "organization",
-                "verbose_name_plural": "organizations",
-            },
-        ),
-        migrations.CreateModel(
-            name="Subscription",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                (
-                    "modified",
-                    models.DateTimeField(auto_now=True, verbose_name="modified"),
-                ),
-                (
-                    "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
-                ),
-                (
-                    "active",
-                    models.BooleanField(
-                        default=False,
-                        help_text="Automatically set by payment system.",
-                        verbose_name="active",
-                    ),
-                ),
-                ("starts", models.DateField()),
-                ("ends", models.DateField()),
-                (
-                    "renewed_subscription",
-                    models.ForeignKey(
-                        blank=True,
-                        null=True,
-                        on_delete=django.db.models.deletion.PROTECT,
-                        to="membership.Subscription",
-                        verbose_name="renewed subscription",
-                    ),
-                ),
-            ],
-            options={
-                "verbose_name": "subscription",
-                "verbose_name_plural": "subscriptions",
-            },
-        ),
-        migrations.CreateModel(
-            name="SubscriptionType",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                (
-                    "modified",
-                    models.DateTimeField(auto_now=True, verbose_name="modified"),
-                ),
-                (
-                    "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
-                ),
-                ("name", models.CharField(max_length=64, verbose_name="name")),
-                (
-                    "fee_currency",
-                    djmoney.models.fields.CurrencyField(
-                        choices=[("DKK", "DKK")],
-                        default="XYZ",
-                        editable=False,
-                        max_length=3,
-                    ),
-                ),
-                (
-                    "fee",
-                    djmoney.models.fields.MoneyField(
-                        decimal_places=2, default=Decimal("0.0"), max_digits=16
-                    ),
-                ),
-                (
-                    "fee_vat_currency",
-                    djmoney.models.fields.CurrencyField(
-                        choices=[("DKK", "DKK")],
-                        default="XYZ",
-                        editable=False,
-                        max_length=3,
-                    ),
-                ),
-                (
-                    "fee_vat",
-                    djmoney.models.fields.MoneyField(
-                        decimal_places=2, default=Decimal("0"), max_digits=16
-                    ),
-                ),
-                (
-                    "duration",
-                    models.PositiveSmallIntegerField(
-                        choices=[(1, "annual")], default=1, verbose_name="duration"
-                    ),
-                ),
-                (
-                    "organization",
-                    models.ForeignKey(
-                        on_delete=django.db.models.deletion.PROTECT,
-                        to="membership.Organization",
-                    ),
-                ),
-            ],
-            options={
-                "verbose_name": "subscription type",
-                "verbose_name_plural": "subscription types",
-            },
-        ),
-        migrations.AddField(
-            model_name="subscription",
-            name="subscription_type",
-            field=models.ForeignKey(
-                on_delete=django.db.models.deletion.PROTECT,
-                related_name="memberships",
-                to="membership.SubscriptionType",
-                verbose_name="subscription type",
-            ),
-        ),
-        migrations.AddField(
-            model_name="subscription",
-            name="user",
-            field=models.ForeignKey(
-                on_delete=django.db.models.deletion.PROTECT, to=settings.AUTH_USER_MODEL
-            ),
-        ),
-        migrations.AddField(
-            model_name="membership",
-            name="organization",
-            field=models.ForeignKey(
-                on_delete=django.db.models.deletion.PROTECT,
-                to="membership.Organization",
-            ),
-        ),
-        migrations.AddField(
-            model_name="membership",
-            name="user",
-            field=models.ForeignKey(
-                on_delete=django.db.models.deletion.PROTECT, to=settings.AUTH_USER_MODEL
-            ),
-        ),
-    ]

parked_apps/membership/models.py

@@ -1,123 +0,0 @@
-from django.contrib.auth import get_user_model
-from django.db import models
-from django.utils.translation import gettext as _
-from djmoney.models.fields import MoneyField
-
-
-class CreatedModifiedAbstract(models.Model):
-
-    modified = models.DateTimeField(auto_now=True, verbose_name=_("modified"))
-    created = models.DateTimeField(auto_now_add=True, verbose_name=_("created"))
-
-    class Meta:
-        abstract = True
-
-
-class Organization(CreatedModifiedAbstract):
-    """
-    This holds the data of the organization that someone is a member of. It is
-    possible that we'll create more advanced features here.
-    """
-
-    name = models.CharField(verbose_name=_("name"), max_length=64)
-
-    def __str__(self):
-        return self.name
-
-    class Meta:
-        verbose_name = _("organization")
-        verbose_name_plural = _("organizations")
-
-
-class Membership(CreatedModifiedAbstract):
-    """
-    A user remains a member of an organization even though the subscription is
-    unpaid or renewed. This just changes the status/permissions etc. of the
-    membership, thus we need to track subscription creation, expiry, renewals
-    etc. and ensure that the membership is modified accordingly.
-
-    This expresses some
-    """
-
-    organization = models.ForeignKey(Organization, on_delete=models.PROTECT)
-    user = models.ForeignKey(get_user_model(), on_delete=models.PROTECT)
-
-    can_vote = models.BooleanField(
-        default=False,
-        verbose_name=_("can vote"),
-        help_text=_(
-            "Indicates that the user has a democratic membership of the "
-            "organization."
-        ),
-    )
-
-    def __str__(self):
-
-        return _("{} is a member of {}").format(
-            self.user.get_full_name(), self.organization.name
-        )
-
-    class Meta:
-        verbose_name = _("membership")
-        verbose_name_plural = _("memberships")
-
-
-class SubscriptionType(CreatedModifiedAbstract):
-    """
-    Properties of subscriptions are stored here. Should of course not be edited
-    after subscriptions are created.
-    """
-
-    organization = models.ForeignKey(Organization, on_delete=models.PROTECT)
-
-    name = models.CharField(verbose_name=_("name"), max_length=64)
-
-    fee = MoneyField(max_digits=16, decimal_places=2)
-
-    fee_vat = MoneyField(max_digits=16, decimal_places=2, default=0)
-
-    duration = models.PositiveSmallIntegerField(
-        default=1, choices=[(1, _("annual"))], verbose_name=_("duration")
-    )
-
-    class Meta:
-        verbose_name = _("subscription type")
-        verbose_name_plural = _("subscription types")
-
-
-class Subscription(CreatedModifiedAbstract):
-    """
-    To not confuse other types of subscriptions, one can be a *subscribed*
-    member of an organization, meaning that they are paying etc.
-
-    A subscription does not track payment, this is done in the accounting app.
-    """
-
-    subscription_type = models.ForeignKey(
-        SubscriptionType,
-        related_name="memberships",
-        verbose_name=_("subscription type"),
-        on_delete=models.PROTECT,
-    )
-    user = models.ForeignKey(get_user_model(), on_delete=models.PROTECT)
-
-    active = models.BooleanField(
-        default=False,
-        verbose_name=_("active"),
-        help_text=_("Automatically set by payment system."),
-    )
-
-    starts = models.DateField()
-    ends = models.DateField()
-
-    renewed_subscription = models.ForeignKey(
-        "self",
-        null=True,
-        blank=True,
-        verbose_name=_("renewed subscription"),
-        on_delete=models.PROTECT,
-    )
-
-    class Meta:
-        verbose_name = _("subscription")
-        verbose_name_plural = _("subscriptions")

parked_apps/users/admin.py

@@ -1 +0,0 @@
-from django.contrib import admin  # noqa

parked_apps/users/apps.py

@@ -1,5 +0,0 @@
-from django.apps import AppConfig
-
-
-class UsersConfig(AppConfig):
-    name = "users"

parked_apps/users/forms.py

@@ -1,19 +0,0 @@
-from django import forms
-from django.contrib.auth.forms import UserCreationForm
-from django.contrib.auth.tokens import default_token_generator
-from django.utils.translation import gettext_lazy as _
-
-from . import models
-
-
-def get_confirm_code(email):
-    return default_token_generator(email)[:7]
-
-
-class SignupForm(UserCreationForm):
-
-    username = forms.EmailField(label=_("Email"))
-
-    class Meta:
-        model = models.User
-        fields = ("username",)

parked_apps/users/migrations/0001_initial.py

@@ -1,73 +0,0 @@
-# Generated by Django 2.2.4 on 2019-08-31 18:44
-import uuid
-
-from django.db import migrations
-from django.db import models
-
-
-class Migration(migrations.Migration):
-
-    initial = True
-
-    dependencies = [("auth", "0011_update_proxy_permissions")]
-
-    operations = [
-        migrations.CreateModel(
-            name="User",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                ("password", models.CharField(max_length=128, verbose_name="password")),
-                (
-                    "last_login",
-                    models.DateTimeField(
-                        blank=True, null=True, verbose_name="last login"
-                    ),
-                ),
-                ("nick", models.CharField(blank=True, max_length=60, null=True)),
-                (
-                    "email",
-                    models.EmailField(
-                        help_text="Your email address will be used for password resets and notification about your event/submissions.",
-                        max_length=254,
-                        unique=True,
-                        verbose_name="E-Mail",
-                    ),
-                ),
-                ("is_active", models.BooleanField(default=True)),
-                ("is_staff", models.BooleanField(default=False)),
-                ("is_superuser", models.BooleanField(default=False)),
-                ("token_uuid", models.UUIDField(default=uuid.uuid4, editable=False)),
-                (
-                    "groups",
-                    models.ManyToManyField(
-                        blank=True,
-                        help_text="The groups this user belongs to. A user will get all permissions granted to each of their groups.",
-                        related_name="user_set",
-                        related_query_name="user",
-                        to="auth.Group",
-                        verbose_name="groups",
-                    ),
-                ),
-                (
-                    "user_permissions",
-                    models.ManyToManyField(
-                        blank=True,
-                        help_text="Specific permissions for this user.",
-                        related_name="user_set",
-                        related_query_name="user",
-                        to="auth.Permission",
-                        verbose_name="user permissions",
-                    ),
-                ),
-            ],
-            options={"verbose_name": "User"},
-        )
-    ]

parked_apps/users/models.py

@@ -1,60 +0,0 @@
-import uuid
-
-from django.contrib.auth.base_user import BaseUserManager
-from django.contrib.auth.models import AbstractBaseUser
-from django.contrib.auth.models import PermissionsMixin
-from django.db import models
-from django.utils.translation import gettext_lazy as _
-
-
-class UserManager(BaseUserManager):
-    """The user manager class."""
-
-    def create_user(self, password: str = None, **kwargs):
-        user = self.model(**kwargs)
-        user.set_password(password)
-        user.save()
-        return user
-
-    def create_superuser(self, password: str, **kwargs):
-        user = self.create_user(password=password, **kwargs)
-        user.is_staff = True
-        user.is_superuser = True
-        user.save(update_fields=["is_staff", "is_superuser"])
-        return user
-
-
-class User(PermissionsMixin, AbstractBaseUser):
-
-    EMAIL_FIELD = "email"
-    USERNAME_FIELD = "email"
-
-    objects = UserManager()
-
-    nick = models.CharField(max_length=60, null=True, blank=True)
-    email = models.EmailField(
-        unique=True,
-        verbose_name=_("E-Mail"),
-        help_text=_(
-            "Your email address will be used for password resets and notification about your event/submissions."
-        ),
-    )
-
-    is_active = models.BooleanField(default=True)
-
-    # For the Django admin...
-    is_staff = models.BooleanField(default=False)
-    is_superuser = models.BooleanField(default=False)
-
-    # Used for confirmations and password reminders to NOT disclose email in URL
-    token_uuid = models.UUIDField(default=uuid.uuid4, editable=False)
-
-    def __str__(self) -> str:
-        """Use a useful string representation."""
-        return self.get_display_name()
-
-    def get_display_name(self) -> str:
-        return self.nick if self.nick else str(_("Unnamed user"))
-
-    class Meta:
-        verbose_name = _("User")

parked_apps/users/templates/users/logged_out.html

@@ -1,10 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block content %}
-
-<p>{% trans "Thanks for spending some quality time with the Web site today." %}</p>
-
-<p><a href="{% url 'admin:index' %}">{% trans 'Log in again' %}</a></p>
-
-{% endblock %}

parked_apps/users/templates/users/login.html

@@ -1,39 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block content %}
-
-{% if form.errors %}
-<p>Your username and password didn't match. Please try again.</p>
-{% endif %}
-
-{% if next %}
-    {% if user.is_authenticated %}
-    <p>Your account doesn't have access to this page. To proceed,
-    please login with an account that has access.</p>
-    {% else %}
-    <p>Please login to see this page.</p>
-    {% endif %}
-{% endif %}
-
-<form method="post" action="{% url 'users:login' %}">
-{% csrf_token %}
-<table>
-<tr>
-    <td>{{ form.username.label_tag }}</td>
-    <td>{{ form.username }}</td>
-</tr>
-<tr>
-    <td>{{ form.password.label_tag }}</td>
-    <td>{{ form.password }}</td>
-</tr>
-</table>
-
-<input type="submit" value="login">
-<input type="hidden" name="next" value="{{ next }}">
-</form>
-
-{# Assumes you setup the password_reset view in your URLconf #}
-<p><a href="{% url 'users:password_reset' %}">Lost password?</a></p>
-
-{% endblock %}

parked_apps/users/templates/users/password_change_done.html

@@ -1,8 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-{% block content %}
-<p>{% trans 'Your password was changed.' %}</p>
-{% endblock %}

parked_apps/users/templates/users/password_change_form.html

@@ -1,52 +0,0 @@
-{% extends "base.html" %}
-{% load i18n static %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-
-{% block content %}<div id="content-main">
-
-<form method="post">{% csrf_token %}
-<div>
-{% if form.errors %}
-    <p class="errornote">
-    {% if form.errors.items|length == 1 %}{% trans "Please correct the error below." %}{% else %}{% trans "Please correct the errors below." %}{% endif %}
-    </p>
-{% endif %}
-
-
-<p>{% trans "Please enter your old password, for security's sake, and then enter your new password twice so we can verify you typed it in correctly." %}</p>
-
-<fieldset class="module aligned wide">
-
-<div class="form-row">
-    {{ form.old_password.errors }}
-    {{ form.old_password.label_tag }} {{ form.old_password }}
-</div>
-
-<div class="form-row">
-    {{ form.new_password1.errors }}
-    {{ form.new_password1.label_tag }} {{ form.new_password1 }}
-    {% if form.new_password1.help_text %}
-    <div class="help">{{ form.new_password1.help_text|safe }}</div>
-    {% endif %}
-</div>
-
-<div class="form-row">
-{{ form.new_password2.errors }}
-    {{ form.new_password2.label_tag }} {{ form.new_password2 }}
-    {% if form.new_password2.help_text %}
-    <div class="help">{{ form.new_password2.help_text|safe }}</div>
-    {% endif %}
-</div>
-
-</fieldset>
-
-<div class="submit-row">
-    <input type="submit" value="{% trans 'Change my password' %}" class="default">
-</div>
-
-</div>
-</form></div>
-
-{% endblock %}

parked_apps/users/templates/users/password_reset_complete.html

@@ -1,13 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-
-{% block content %}
-
-<p>{% trans "Your password has been set.  You may go ahead and log in now." %}</p>
-
-<p><a href="{{ login_url }}">{% trans 'Log in' %}</a></p>
-
-{% endblock %}

parked_apps/users/templates/users/password_reset_confirm.html

@@ -1,34 +0,0 @@
-{% extends "base.html" %}
-{% load i18n static %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-{% block content %}
-
-{% if validlink %}
-
-<p>{% trans "Please enter your new password twice so we can verify you typed it in correctly." %}</p>
-
-<form method="post">{% csrf_token %}
-<fieldset class="module aligned">
-    <div class="form-row field-password1">
-        {{ form.new_password1.errors }}
-        <label for="id_new_password1">{% trans 'New password:' %}</label>
-        {{ form.new_password1 }}
-    </div>
-    <div class="form-row field-password2">
-        {{ form.new_password2.errors }}
-        <label for="id_new_password2">{% trans 'Confirm password:' %}</label>
-        {{ form.new_password2 }}
-    </div>
-    <input type="submit" value="{% trans 'Change my password' %}">
-</fieldset>
-</form>
-
-{% else %}
-
-<p>{% trans "The password reset link was invalid, possibly because it has already been used.  Please request a new password reset." %}</p>
-
-{% endif %}
-
-{% endblock %}

parked_apps/users/templates/users/password_reset_done.html

@@ -1,12 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-{% block content %}
-
-<p>{% trans "We've emailed you instructions for setting your password, if an account exists with the email you entered. You should receive them shortly." %}</p>
-
-<p>{% trans "If you don't receive an email, please make sure you've entered the address you registered with, and check your spam folder." %}</p>
-
-{% endblock %}

parked_apps/users/templates/users/password_reset_email.html

@@ -1,14 +0,0 @@
-{% load i18n %}{% autoescape off %}
-{% blocktrans %}You're receiving this email because you requested a password reset for your user account at {{ site_name }}.{% endblocktrans %}
-
-{% trans "Please go to the following page and choose a new password:" %}
-{% block reset_link %}
-{{ protocol }}://{{ domain }}{% url 'users:password_reset_confirm' uidb64=uid token=token %}
-{% endblock %}
-{% trans "Your username, in case you've forgotten:" %} {{ user.get_username }}
-
-{% trans "Thanks for using our site!" %}
-
-{% blocktrans %}The {{ site_name }} team{% endblocktrans %}
-
-{% endautoescape %}

parked_apps/users/templates/users/password_reset_form.html

@@ -1,19 +0,0 @@
-{% extends "base.html" %}
-{% load i18n static %}
-
-{% block title %}{{ title }}{% endblock %}
-{% block content_title %}<h1>{{ title }}</h1>{% endblock %}
-{% block content %}
-
-<h1>{% trans "Forgotten password?" %}</h1>
-
-<p>{% trans "Forgotten your password? Enter your email address below, and we'll email instructions for setting a new one." %}</p>
-
-<form method="post">{% csrf_token %}
-    {{ form.email.errors }}
-    <label for="id_email">{% trans 'Email address:' %}</label>
-    {{ form.email }}
-    <input type="submit" value="{% trans 'Reset my password' %}">
-</form>
-
-{% endblock %}

parked_apps/users/templates/users/signup.html

@@ -1,21 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block content %}
-
-<h1>{% trans "Sign up" %}</h1>
-
-    {% if form.errors %}
-    {% endif %}
-
-    <form method="post" action="{% url 'users:signup' %}">
-    {% csrf_token %}
-    {{ form.as_p }}
-
-    <p><button type="submit">{% trans "Confirm email..." %}</button></p>
-
-    </form>
-
-    <p><a href="{% url 'users:login' %}">{% trans "Already have an account? Log in..." %}</a></p>
-
-{% endblock %}

parked_apps/users/templates/users/signup_confirm.html

@@ -1,10 +0,0 @@
-{% extends "base.html" %}
-{% load i18n %}
-
-{% block content %}
-
-<h1>{% trans "Confirm your email" %}</h1>
-
-<p>{% trans "You've got mail - click the link or copy paste it to this browser session and you'll be logged in." %}</p>
-
-{% endblock %}

parked_apps/users/urls.py

@@ -1,61 +0,0 @@
-from django.contrib.auth import views as auth_views
-from django.urls import path
-
-from . import views
-
-app_name = "users"
-
-urlpatterns = [
-    path("signup/", views.SignupView.as_view(), name="signup"),
-    path("signup/confirm/", views.SignupConfirmView.as_view(), name="signup_confirm"),
-    path(
-        "login/",
-        auth_views.LoginView.as_view(template_name="users/login.html"),
-        name="login",
-    ),
-    path(
-        "logout/",
-        auth_views.LogoutView.as_view(template_name="users/logged_out.html"),
-        name="logout",
-    ),
-    path(
-        "password_change/",
-        views.PasswordChangeView.as_view(
-            template_name="users/password_change_form.html"
-        ),
-        name="password_change",
-    ),
-    path(
-        "password_change/done/",
-        auth_views.PasswordChangeDoneView.as_view(
-            template_name="users/password_change_done.html"
-        ),
-        name="password_change_done",
-    ),
-    path(
-        "password_reset/",
-        views.PasswordResetView.as_view(template_name="users/password_reset_form.html"),
-        name="password_reset",
-    ),
-    path(
-        "password_reset/done/",
-        auth_views.PasswordResetDoneView.as_view(
-            template_name="users/password_reset_done.html"
-        ),
-        name="password_reset_done",
-    ),
-    path(
-        "reset/<uidb64>/<token>/",
-        views.PasswordResetConfirmView.as_view(
-            template_name="users/password_reset_confirm.html"
-        ),
-        name="password_reset_confirm",
-    ),
-    path(
-        "reset/done/",
-        auth_views.PasswordResetCompleteView.as_view(
-            template_name="users/password_reset_complete.html"
-        ),
-        name="password_reset_complete",
-    ),
-]

parked_apps/users/views.py

@@ -1,59 +0,0 @@
-from django.contrib.auth import views as auth_views
-from django.shortcuts import redirect
-from django.urls.base import reverse_lazy
-from django.views.generic.base import RedirectView
-from django.views.generic.base import TemplateView
-from django.views.generic.edit import FormView
-
-from . import forms
-
-# from . import email
-
-
-class PasswordResetView(auth_views.PasswordResetView):
-    email_template_name = "users/password_reset_email.html"
-    success_url = reverse_lazy("users:password_reset_done")
-
-
-class PasswordResetConfirmView(auth_views.PasswordResetConfirmView):
-    success_url = reverse_lazy("users:password_reset_complete")
-
-
-class PasswordChangeView(auth_views.PasswordChangeView):
-    success_url = reverse_lazy("users:password_change_done")
-
-
-class SignupView(FormView):
-
-    template_name = "users/signup.html"
-    form_class = forms.SignupForm
-
-    def form_valid(self, form):
-
-        user = form.save(commit=False)
-        user.is_active = False
-        user.set_password(form.cleaned_data["password1"])
-        user.save()
-
-        # mail = email.UserConfirm(user=user)
-        # mail.send_with_feedback(success_msg=_("An email was sent with a confirmation link"))
-
-        self.request.session["user_confirm_pending_id"] = user.id
-
-        return redirect("users:signup_confirm")
-
-
-class SignupConfirmView(TemplateView):
-
-    template_name = "users/signup_confirm.html"
-
-
-class SignupConfirmRedirectView(RedirectView):
-    def get_redirect_url(self):
-
-        uuid = self.kwargs["uuid"]
-
-        if self.kwargs["token"] == forms.get_confirm_code(uuid):
-            redirect("users:confirmed")  # TODO
-
-        redirect("users:confirm_nope")  # TODO

poetry.lock

@@ -1,765 +0,0 @@
-[[package]]
-name = "appdirs"
-version = "1.4.4"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "dev"
-optional = false
-python-versions = "*"
-
-[[package]]
-name = "asgiref"
-version = "3.3.1"
-description = "ASGI specs, helper code, and adapters"
-category = "main"
-optional = false
-python-versions = ">=3.5"
-
-[package.extras]
-tests = ["pytest", "pytest-asyncio"]
-
-[[package]]
-name = "atomicwrites"
-version = "1.4.0"
-description = "Atomic file writes."
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
-[[package]]
-name = "attrs"
-version = "20.3.0"
-description = "Classes Without Boilerplate"
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
-[package.extras]
-dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
-docs = ["furo", "sphinx", "zope.interface"]
-tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
-tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
-
-[[package]]
-name = "certifi"
-version = "2020.12.5"
-description = "Python package for providing Mozilla's CA Bundle."
-category = "main"
-optional = false
-python-versions = "*"
-
-[[package]]
-name = "cffi"
-version = "1.14.4"
-description = "Foreign Function Interface for Python calling C code."
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-pycparser = "*"
-
-[[package]]
-name = "cfgv"
-version = "3.2.0"
-description = "Validate configuration and produce human readable error messages."
-category = "dev"
-optional = false
-python-versions = ">=3.6.1"
-
-[[package]]
-name = "chardet"
-version = "4.0.0"
-description = "Universal encoding detector for Python 2 and 3"
-category = "main"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-
-[[package]]
-name = "colorama"
-version = "0.4.4"
-description = "Cross-platform colored terminal text."
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-
-[[package]]
-name = "cryptography"
-version = "3.4.3"
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-    {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
-]
-sqlparse = [
-    {file = "sqlparse-0.4.1-py3-none-any.whl", hash = "sha256:017cde379adbd6a1f15a61873f43e8274179378e95ef3fede90b5aa64d304ed0"},
-    {file = "sqlparse-0.4.1.tar.gz", hash = "sha256:0f91fd2e829c44362cbcfab3e9ae12e22badaa8a29ad5ff599f9ec109f0454e8"},
-]
-toml = [
-    {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
-    {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
-]
-typing-extensions = [
-    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
-    {file = "typing_extensions-3.7.4.3-py3-none-any.whl", hash = "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918"},
-    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
-]
-urllib3 = [
-    {file = "urllib3-1.26.3-py2.py3-none-any.whl", hash = "sha256:1b465e494e3e0d8939b50680403e3aedaa2bc434b7d5af64dfd3c958d7f5ae80"},
-    {file = "urllib3-1.26.3.tar.gz", hash = "sha256:de3eedaad74a2683334e282005cd8d7f22f4d55fa690a2a1020a416cb0a47e73"},
-]
-virtualenv = [
-    {file = "virtualenv-20.4.2-py2.py3-none-any.whl", hash = "sha256:2be72df684b74df0ea47679a7df93fd0e04e72520022c57b479d8f881485dbe3"},
-    {file = "virtualenv-20.4.2.tar.gz", hash = "sha256:147b43894e51dd6bba882cf9c282447f780e2251cd35172403745fc381a0a80d"},
-]
-wcwidth = [
-    {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
-    {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
-]
-zipp = [
-    {file = "zipp-3.4.0-py3-none-any.whl", hash = "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108"},
-    {file = "zipp-3.4.0.tar.gz", hash = "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"},
-]

project/context_processors.py

@@ -1,7 +0,0 @@
-"""Context processors for the membersystem app."""
-from django.contrib.sites.shortcuts import get_current_site
-
-
-def current_site(request):
-    """Include the current site in the context."""
-    return {"site": get_current_site(request)}

project/settings/__init__.py

@@ -1,14 +0,0 @@
-import warnings
-
-from .base import *  # noqa
-
-try:
-    from .local import *  # noqa
-except ImportError:
-    warnings.warn(
-        "No settings.local, using a default SECRET_KEY 'hest'. You should "
-        "write a custom local.py with this setting."
-    )
-    SECRET_KEY = "hest"
-    DEBUG = True
-    pass

project/settings/base.py

@@ -1,133 +0,0 @@
-"""
-Django settings for membersystem project.
-
-Generated by 'django-admin startproject' using Django 2.0.4.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/2.0/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/2.0/ref/settings/
-"""
-import os
-
-# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
-BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-
-# Quick-start development settings - unsuitable for production
-# See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/
-
-# SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = False
-
-ALLOWED_HOSTS = []
-
-
-# Application definition
-
-INSTALLED_APPS = [
-    # From Django.
-    "django.contrib.admin",
-    "django.contrib.auth",
-    "django.contrib.contenttypes",
-    "django.contrib.sessions",
-    "django.contrib.messages",
-    "django.contrib.staticfiles",
-    "django.contrib.sites",
-    # Third party apps.
-    "allauth",
-    "allauth.account",
-    "allauth.socialaccount",
-    # Our apps.
-]
-
-MIDDLEWARE = [
-    "django.middleware.security.SecurityMiddleware",
-    "django.contrib.sessions.middleware.SessionMiddleware",
-    "django.middleware.common.CommonMiddleware",
-    "django.middleware.csrf.CsrfViewMiddleware",
-    "django.contrib.auth.middleware.AuthenticationMiddleware",
-    "django.contrib.messages.middleware.MessageMiddleware",
-    "django.middleware.clickjacking.XFrameOptionsMiddleware",
-]
-
-ROOT_URLCONF = "project.urls"
-
-TEMPLATES = [
-    {
-        "BACKEND": "django.template.backends.django.DjangoTemplates",
-        "DIRS": [os.path.join("project", "templates")],
-        "APP_DIRS": True,
-        "OPTIONS": {
-            "context_processors": [
-                "django.template.context_processors.debug",
-                "django.template.context_processors.request",
-                "django.contrib.auth.context_processors.auth",
-                "django.contrib.messages.context_processors.messages",
-                "project.context_processors.current_site",
-            ]
-        },
-    }
-]
-
-AUTHENTICATION_BACKENDS = (
-    "django.contrib.auth.backends.ModelBackend",
-    "allauth.account.auth_backends.AuthenticationBackend",
-)
-
-WSGI_APPLICATION = "project.wsgi.application"
-
-
-# Database
-# https://docs.djangoproject.com/en/2.0/ref/settings/#databases
-
-DATABASES = {
-    "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
-    }
-}
-
-
-# Password validation
-# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators
-
-AUTH_PASSWORD_VALIDATORS = [
-    {
-        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator"  # noqa
-    },
-    {"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator"},  # noqa
-    {"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"},  # noqa
-    {
-        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator"  # noqa
-    },
-]
-
-
-# Internationalization
-# https://docs.djangoproject.com/en/2.0/topics/i18n/
-
-LANGUAGE_CODE = "en-us"
-
-TIME_ZONE = "UTC"
-
-USE_I18N = True
-
-USE_L10N = True
-
-USE_TZ = True
-
-
-# Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/2.0/howto/static-files/
-
-STATIC_URL = "/static/"
-
-STATICFILES_DIRS = [os.path.join(BASE_DIR, "static")]
-
-SITE_ID = 1
-
-EMAIL_BACKEND = "django.core.mail.backends.console.EmailBackend"
-
-CURRENCIES = ("DKK",)
-CURRENCY_CHOICES = [("DKK", "DKK")]

project/static/css/membersystem.css

@@ -1,79 +0,0 @@
-/* General styles */
-html
-{
-    margin: 0;
-    padding: 0;
-    font-family: sans-serif;
-    font-size: 2.5vmin;
-    background: #f8f8f8;
-}
-
-body
-{
-    background: #fff;
-    color: #000;
-    margin: 1em auto;
-    max-width: 50em;
-    padding: 0 1em;
-    box-shadow: 0 0 2.5em rgba(0, 0, 0, 20%);
-}
-
-header,
-footer
-{
-    background: #eee;
-    padding: .5em;
-    margin: 0 -1em;
-}
-
-footer
-{
-    margin-top: 2em;
-}
-
-
-header h1
-{
-    font-size: 1em;
-    float: left;
-    padding: .5em .5em;
-    margin: 0;
-}
-
-header ul,
-footer ul
-{
-    list-style-type: none;
-    padding: 0;
-    margin: 0;
-    text-align: right;
-}
-
-header ul li,
-footer ul li
-{
-    display: inline;
-}
-
-header ul li a,
-footer ul li a
-{
-    display: inline-block;
-    margin: 0;
-    padding: .5em .5em;
-}
-
-
-/* Forms */
-label
-{
-    display: block;
-    padding: .5em 0;
-}
-
-button,
-input,
-textarea
-{
-    font-size: inherit;
-}

project/templates/base.html

@@ -1,49 +0,0 @@
-<!DOCTYPE html>
-{% load static %}
-<html>
-    <head>
-        <title>{% block head_title %}{% endblock %} – {{ site.name }}</title>
-        {% block extra_head %}{% endblock %}
-        <link rel="stylesheet" href="{% static '/css/membersystem.css' %}" type="text/css" />
-    </head>
-    <body>
-        <header>
-            <h1>
-                <a href="/">{{ site.name }}</a>
-            </h1>
-            <ul>
-                {% if user.is_authenticated %}
-                    <li><a href="">Change password</a></li>
-                    <li><a href="">Sign out</a></li>
-                {% else %}
-                    <li><a href="">Sign in</a></li>
-                    <li><a href="">Sign up</a></li>
-                {% endif %}
-            </ul>
-        </header>
-        {% block body %}
-            {% if messages %}
-                <ul id="messages">
-                    {% for message in messages %}
-                        <li>{{message}}</li>
-                    {% endfor %}
-                </ul>
-            {% endif %}
-
-            {% block content %}
-            {% endblock %}
-        {% endblock %}
-        {% block extra_body %}
-        {% endblock %}
-        <footer>
-            <ul>
-                <li>
-                    <a href="https://data.coop">data.coop</a>
-                </li>
-                <li>
-                    <a href="https://git.data.coop/data.coop/membersystem">source code</a>
-                </li>
-            </ul>
-        </footer>
-    </body>
-</html>

project/urls.py

@@ -1,12 +0,0 @@
-"""URLs for the membersystem"""
-from django.contrib import admin
-from django.urls import include
-from django.urls import path
-
-from . import views
-
-urlpatterns = [
-    path("", views.index),
-    path("accounts/", include("allauth.urls")),
-    path("admin/", admin.site.urls),
-]

project/views.py

@@ -1,5 +0,0 @@
-from django.shortcuts import render
-
-
-def index(request):
-    return render(request, "index.html")

pyproject.toml

@@ -1,20 +1,166 @@
-[tool.poetry]
-name = "membersystem"
-version = "0.1.0"
-description = ""
-authors = ["Your Name <you@example.com>"]
-
-[tool.poetry.dependencies]
-python = "^3.7"
-Django = "^3.1"
-django-money = "^1.3"
-django-allauth = "^0.44.0"
-
-[tool.poetry.dev-dependencies]
-pre-commit = "^2.9.3"
-pytest = "^5.1"
-pytest-django = "^3.5"
-
 [build-system]
-requires = ["poetry>=0.12"]
+requires = ["hatchling"]
-build-backend = "poetry.masonry.api"
+build-backend = "hatchling.build"
+
+[project]
+name = "membersystem"
+description = ''
+readme = "README.md"
+requires-python = ">=3.11"
+keywords = []
+authors = [
+    { name = "Víðir Valberg Guðmundsson", email = "valberg@orn.li" },
+]
+dependencies = [
+    "Django~=5.1",
+    "django-allauth~=0.63",
+    "django-money~=3.5",
+    "django-oauth-toolkit~=2.4",
+    "django-registries==0.0.3",
+    "django-view-decorator==0.0.4",
+    "django-oauth-toolkit~=2.4",
+    "django-ratelimit~=4.1",
+    "django-zen-queries~=2.1",
+    "django_stubs_ext~=5.0",
+    "environs[django]>=11,<12",
+    "psycopg[binary]~=3.2",
+    "stripe~=10.5",
+    "uvicorn~=0.30",
+    "whitenoise~=6.7",
+]
+version = "0.0.1"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src"]
+
+[tool.hatch.env]
+requires = ["hatch-pip-compile"]
+
+[tool.hatch.envs.default]
+type = "pip-compile"
+pip-compile-resolver = "uv"
+
+[tool.hatch.envs.dev]
+type = "pip-compile"
+pip-compile-resolver = "uv"
+dependencies = [
+    "coverage[toml]==7.3.0",
+    "pytest==7.2.2",
+    "pytest-cov",
+    "pytest-django==4.5.2",
+    "mypy==1.1.1",
+    "django-stubs==1.16.0",
+    "pip-tools==7.3.0",
+    "django-debug-toolbar==4.2.0",
+    "django-browser-reload==1.7.0",
+    "model-bakery==1.17.0",
+]
+
+[[tool.hatch.envs.tests.matrix]]
+python = ["3.12"]
+django = ["5.1"]
+
+[tool.hatch.envs.tests.overrides]
+matrix.django.dependencies = [
+    { value = "django~={matrix:django}" },
+]
+
+[tool.hatch.envs.default.scripts]
+cov = "pytest --cov-report=term-missing --cov-config=pyproject.toml --cov=src --cov=tests --cov=append {args}"
+no-cov = "cov --no-cov {args}"
+typecheck = "mypy --config-file=pyproject.toml ."
+requirements = "hatch env run --env default -- python --version; hatch env run --env dev -- python --version"
+server = "./src/manage.py runserver 0.0.0.0:8000"
+migrate = "./src/manage.py migrate"
+makemigrations = "./src/manage.py makemigrations"
+createsuperuser = "./src/manage.py createsuperuser"
+shell = "./src/manage.py shell"
+# You need to install Stripe CLI from here to run this: https://github.com/stripe/stripe-cli/releases
+stripe_cli = "stripe listen --forward-to 0.0.0.0:8000/order/stripe/webhook/"
+
+[tool.pytest.ini_options]
+DJANGO_SETTINGS_MODULE="tests.settings"
+addopts = "--reuse-db"
+norecursedirs = "build dist docs .eggs/* *.egg-info htmlcov .git"
+python_files = "test*.py"
+testpaths = "tests"
+pythonpath = ". tests"
+
+[tool.coverage.run]
+branch = true
+parallel = true
+
+[tool.coverage.report]
+exclude_lines = [
+    "no cov",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+]
+
+[tool.mypy]
+mypy_path = "src/"
+exclude = [
+    "venv/",
+    "dist/",
+    "docs/",
+]
+namespace_packages = false
+show_error_codes = true
+strict = true
+warn_unreachable = true
+follow_imports = "normal"
+plugins = ["mypy_django_plugin.main"]
+
+[tool.django-stubs]
+django_settings_module = "project.settings"
+
+[[tool.mypy.overrides]]
+module = "tests.*"
+allow_untyped_defs = true
+
+[tool.ruff]
+target-version = "py312"
+extend-exclude = [
+    ".git",
+    "__pycache__",
+    "manage.py",
+    "asgi.py",
+    "wsgi.py",
+]
+line-length = 120
+
+[tool.ruff.lint]
+select = ["ALL"]
+ignore = [
+    "G004", # Logging statement uses f-string
+    "ANN101", # Missing type annotation for `self` in method
+    "ANN102", # Missing type annotation for `cls` in classmethod
+    "EM101", # Exception must not use a string literal, assign to variable first
+    "EM102", # Exception must not use a f-string literal, assign to variable first
+    "COM812", # missing-trailing-comma (https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules)
+    "ISC001", # single-line-implicit-string-concatenation (https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules)
+    "D100", # Missing docstring in public module
+    "D101", # Missing docstring in public class
+    "D102", # Missing docstring in public method
+    "D105", # Missing docstring in magic method
+    "D106", # Missing docstring in public nested class
+    "D107", # Missing docstring in `__init__`
+    "FIX", # TODO, FIXME, XXX
+    "TD", # TODO, FIXME, XXX
+    "ANN002", # Missing type annotation for `*args`
+    "ANN003", # Missing type annotation for `**kwargs`
+    "FBT001", # Misbehaves: Boolean-typed positional argument in function definition
+    "FBT002", # Misbehaves: Boolean-typed positional argument in function definition
+    "TRY003", # Avoid specifying long messages outside the exception class
+]
+
+[tool.ruff.lint.isort]
+force-single-line = true
+
+[tool.ruff.lint.per-file-ignores]
+"tests.py" = [
+    "S101",  # Use of assert
+    "SLF001",  # Private member access
+    "D100", # Docstrings
+    "D103", # Docstrings
+]

pytest.ini

@@ -1,5 +0,0 @@
-[pytest]
-testpaths = .
-python_files = tests.py test_*.py *_tests.py
-DJANGO_SETTINGS_MODULE = project.settings
-#norecursedirs = dist tmp* .svn .*

requirements.txt

@@ -0,0 +1,116 @@
+#
+# This file is autogenerated by hatch-pip-compile with Python 3.12
+#
+# - django-allauth~=0.63
+# - django-money~=3.5
+# - django-oauth-toolkit~=2.4
+# - django-ratelimit~=4.1
+# - django-registries==0.0.3
+# - django-stubs-ext~=5.0
+# - django-view-decorator==0.0.4
+# - django-zen-queries~=2.1
+# - django<5.2,>=5.1b1
+# - environs[django]<12,>=11
+# - psycopg[binary]~=3.2
+# - stripe~=10.5
+# - uvicorn~=0.30
+# - whitenoise~=6.7
+#
+
+asgiref==3.8.1
+    # via django
+babel==2.15.0
+    # via py-moneyed
+certifi==2024.7.4
+    # via requests
+cffi==1.16.0
+    # via cryptography
+charset-normalizer==3.3.2
+    # via requests
+click==8.1.7
+    # via uvicorn
+cryptography==43.0.0
+    # via jwcrypto
+dj-database-url==2.2.0
+    # via environs
+dj-email-url==1.0.6
+    # via environs
+django==5.1rc1
+    # via
+    #   hatch.envs.default
+    #   dj-database-url
+    #   django-allauth
+    #   django-money
+    #   django-oauth-toolkit
+    #   django-registries
+    #   django-stubs-ext
+    #   django-view-decorator
+    #   django-zen-queries
+django-allauth==0.63.6
+    # via hatch.envs.default
+django-cache-url==3.4.5
+    # via environs
+django-money==3.5.3
+    # via hatch.envs.default
+django-oauth-toolkit==2.4.0
+    # via hatch.envs.default
+django-ratelimit==4.1.0
+    # via hatch.envs.default
+django-registries==0.0.3
+    # via hatch.envs.default
+django-stubs-ext==5.0.4
+    # via hatch.envs.default
+django-view-decorator==0.0.4
+    # via hatch.envs.default
+django-zen-queries==2.1.0
+    # via hatch.envs.default
+environs==11.0.0
+    # via hatch.envs.default
+h11==0.14.0
+    # via uvicorn
+idna==3.7
+    # via requests
+jwcrypto==1.5.6
+    # via django-oauth-toolkit
+marshmallow==3.21.3
+    # via environs
+oauthlib==3.2.2
+    # via django-oauth-toolkit
+packaging==24.1
+    # via marshmallow
+psycopg==3.2.1
+    # via hatch.envs.default
+psycopg-binary==3.2.1
+    # via psycopg
+py-moneyed==3.0
+    # via django-money
+pycparser==2.22
+    # via cffi
+python-dotenv==1.0.1
+    # via environs
+pytz==2024.1
+    # via django-oauth-toolkit
+requests==2.32.3
+    # via
+    #   django-oauth-toolkit
+    #   stripe
+setuptools==72.1.0
+    # via django-money
+sqlparse==0.5.1
+    # via django
+stripe==10.6.0
+    # via hatch.envs.default
+typing-extensions==4.12.2
+    # via
+    #   dj-database-url
+    #   django-stubs-ext
+    #   jwcrypto
+    #   psycopg
+    #   py-moneyed
+    #   stripe
+urllib3==2.2.2
+    # via requests
+uvicorn==0.30.5
+    # via hatch.envs.default
+whitenoise==6.7.0
+    # via hatch.envs.default

requirements/requirements-dev.txt

@@ -0,0 +1,192 @@
+#
+# This file is autogenerated by hatch-pip-compile with Python 3.12
+#
+# - coverage[toml]==7.3.0
+# - pytest==7.2.2
+# - pytest-cov
+# - pytest-django==4.5.2
+# - mypy==1.1.1
+# - django-stubs==1.16.0
+# - pip-tools==7.3.0
+# - django-debug-toolbar==4.2.0
+# - django-browser-reload==1.7.0
+# - model-bakery==1.17.0
+# - django-allauth~=0.63
+# - django-money~=3.5
+# - django-oauth-toolkit~=2.4
+# - django-ratelimit~=4.1
+# - django-registries==0.0.3
+# - django-stubs-ext~=5.0
+# - django-view-decorator==0.0.4
+# - django-zen-queries~=2.1
+# - django<5.2,>=5.1b1
+# - environs[django]<12,>=11
+# - psycopg[binary]~=3.2
+# - stripe~=10.5
+# - uvicorn~=0.30
+# - whitenoise~=6.7
+#
+
+asgiref==3.8.1
+    # via django
+attrs==23.2.0
+    # via pytest
+babel==2.15.0
+    # via py-moneyed
+build==1.2.1
+    # via pip-tools
+certifi==2024.7.4
+    # via requests
+cffi==1.16.0
+    # via cryptography
+charset-normalizer==3.3.2
+    # via requests
+click==8.1.7
+    # via
+    #   pip-tools
+    #   uvicorn
+coverage==7.3.0
+    # via
+    #   hatch.envs.dev
+    #   pytest-cov
+cryptography==43.0.0
+    # via jwcrypto
+dj-database-url==2.2.0
+    # via environs
+dj-email-url==1.0.6
+    # via environs
+django==5.1rc1
+    # via
+    #   hatch.envs.dev
+    #   dj-database-url
+    #   django-allauth
+    #   django-browser-reload
+    #   django-debug-toolbar
+    #   django-money
+    #   django-oauth-toolkit
+    #   django-registries
+    #   django-stubs
+    #   django-stubs-ext
+    #   django-view-decorator
+    #   django-zen-queries
+    #   model-bakery
+django-allauth==0.63.6
+    # via hatch.envs.dev
+django-browser-reload==1.7.0
+    # via hatch.envs.dev
+django-cache-url==3.4.5
+    # via environs
+django-debug-toolbar==4.2.0
+    # via hatch.envs.dev
+django-money==3.5.3
+    # via hatch.envs.dev
+django-oauth-toolkit==2.4.0
+    # via hatch.envs.dev
+django-ratelimit==4.1.0
+    # via hatch.envs.dev
+django-registries==0.0.3
+    # via hatch.envs.dev
+django-stubs==1.16.0
+    # via hatch.envs.dev
+django-stubs-ext==5.0.4
+    # via
+    #   hatch.envs.dev
+    #   django-stubs
+django-view-decorator==0.0.4
+    # via hatch.envs.dev
+django-zen-queries==2.1.0
+    # via hatch.envs.dev
+environs==11.0.0
+    # via hatch.envs.dev
+h11==0.14.0
+    # via uvicorn
+idna==3.7
+    # via requests
+iniconfig==2.0.0
+    # via pytest
+jwcrypto==1.5.6
+    # via django-oauth-toolkit
+marshmallow==3.21.3
+    # via environs
+model-bakery==1.17.0
+    # via hatch.envs.dev
+mypy==1.1.1
+    # via
+    #   hatch.envs.dev
+    #   django-stubs
+mypy-extensions==1.0.0
+    # via mypy
+oauthlib==3.2.2
+    # via django-oauth-toolkit
+packaging==24.1
+    # via
+    #   build
+    #   marshmallow
+    #   pytest
+pip==24.2
+    # via pip-tools
+pip-tools==7.3.0
+    # via hatch.envs.dev
+pluggy==1.5.0
+    # via pytest
+psycopg==3.2.1
+    # via hatch.envs.dev
+psycopg-binary==3.2.1
+    # via psycopg
+py-moneyed==3.0
+    # via django-money
+pycparser==2.22
+    # via cffi
+pyproject-hooks==1.1.0
+    # via build
+pytest==7.2.2
+    # via
+    #   hatch.envs.dev
+    #   pytest-cov
+    #   pytest-django
+pytest-cov==5.0.0
+    # via hatch.envs.dev
+pytest-django==4.5.2
+    # via hatch.envs.dev
+python-dotenv==1.0.1
+    # via environs
+pytz==2024.1
+    # via django-oauth-toolkit
+requests==2.32.3
+    # via
+    #   django-oauth-toolkit
+    #   stripe
+setuptools==72.1.0
+    # via
+    #   django-money
+    #   pip-tools
+sqlparse==0.5.1
+    # via
+    #   django
+    #   django-debug-toolbar
+stripe==10.6.0
+    # via hatch.envs.dev
+tomli==2.0.1
+    # via django-stubs
+types-pytz==2024.1.0.20240417
+    # via django-stubs
+types-pyyaml==6.0.12.20240724
+    # via django-stubs
+typing-extensions==4.12.2
+    # via
+    #   dj-database-url
+    #   django-stubs
+    #   django-stubs-ext
+    #   jwcrypto
+    #   mypy
+    #   psycopg
+    #   py-moneyed
+    #   stripe
+urllib3==2.2.2
+    # via requests
+uvicorn==0.30.5
+    # via hatch.envs.dev
+wheel==0.43.0
+    # via pip-tools
+whitenoise==6.7.0
+    # via hatch.envs.dev

src/accounting/__init__.py

@@ -0,0 +1 @@
+"""Accounting app."""

src/accounting/admin.py

@@ -0,0 +1,94 @@
+"""Admin for the accounting app."""
+
+from django import forms
+from django.contrib import admin
+from django.contrib import messages
+from django.db.models import QuerySet
+from django.http import HttpRequest
+from django.utils.translation import gettext_lazy as _
+from membership.emails import OrderEmail
+
+from . import models
+
+
+class OrderProductInline(admin.TabularInline):
+    """Administer contents of an order inline."""
+
+    model = models.OrderProduct
+
+
+class OrderAdminForm(forms.ModelForm):
+    """Special Form for the OrderAdmin so we don't need to require the account field."""
+
+    account = forms.ModelChoiceField(
+        required=False,
+        queryset=models.Account.objects.all(),
+        help_text=_("Leave empty to auto-choose the member's own account or to create one."),
+    )
+
+    class Meta:
+        model = models.Order
+        exclude = ()  # noqa: DJ006
+
+    def clean(self):  # noqa: ANN201
+        cd = super().clean()
+        if not cd["account"] and cd["member"]:
+            try:
+                cd["account"] = models.Account.objects.get_or_create(owner=cd["member"])[0]
+            except models.Account.MultipleObjectsReturned:
+                cd["account"] = models.Account.objects.filter(owner=cd["member"]).first()
+        return cd
+
+
+@admin.register(models.Order)
+class OrderAdmin(admin.ModelAdmin):
+    """Admin for the Order model."""
+
+    inlines = (OrderProductInline,)
+    form = OrderAdminForm
+
+    actions = ("send_order",)
+
+    list_display = ("member", "description", "created", "is_paid", "total_with_vat")
+    search_fields = ("member__email", "membership__membership_type__name", "description")
+    list_filter = ("is_paid", "membership__membership_type")
+
+    @admin.action(description="Send order link to selected unpaid orders")
+    def send_order(self, request: HttpRequest, queryset: QuerySet[models.Order]) -> None:
+        for order in queryset:
+            if order.is_paid:
+                messages.error(
+                    request,
+                    f"Order pk={order.id} is already marked paid, not sending email to: {order.member.email}",
+                )
+                continue
+            email = OrderEmail(order, request)
+            email.send()
+            messages.success(request, f"Sent an order for order pk={order.id} link to: {order.member.email}")
+
+
+@admin.register(models.Payment)
+class PaymentAdmin(admin.ModelAdmin):
+    """Admin for the Payment model."""
+
+    list_display = ("order__member", "description", "order_id", "created")
+
+    @admin.display(description=_("Order ID"))
+    def order_id(self, instance: models.Payment) -> int:
+        """Return the ID of the order."""
+        return instance.order.id
+
+
+@admin.register(models.Product)
+class ProductAdmin(admin.ModelAdmin):
+    list_display = ("name", "price", "vat")
+
+
+class TransactionInline(admin.TabularInline):
+    model = models.Transaction
+
+
+@admin.register(models.Account)
+class AccountAdmin(admin.ModelAdmin):
+    list_display = ("owner", "balance")
+    inlines = (TransactionInline,)

src/accounting/apps.py

@@ -0,0 +1,13 @@
+"""Accounting app configuration."""
+
+from django.apps import AppConfig
+
+
+class AccountingConfig(AppConfig):
+    """Accounting app config."""
+
+    name = "accounting"
+
+    def ready(self) -> None:
+        """Implicitly connect a signal handlers decorated with @receiver."""
+        from . import signals  # noqa: F401

src/accounting/migrations/0001_initial.py

@@ -1,6 +1,4 @@
-# Generated by Django 2.0.6 on 2018-06-23 19:51
+# Generated by Django 3.1.7 on 2021-02-27 20:06
-from decimal import Decimal
-
 import django.db.models.deletion
 import djmoney.models.fields
 from django.conf import settings
@@ -9,10 +7,11 @@ from django.db import models
 
 
 class Migration(migrations.Migration):
-
     initial = True
 
-    dependencies = [migrations.swappable_dependency(settings.AUTH_USER_MODEL)]
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
 
     operations = [
         migrations.CreateModel(
@@ -33,7 +32,7 @@ class Migration(migrations.Migration):
                 ),
                 (
                     "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
                 ),
                 (
                     "owner",
@@ -43,7 +42,9 @@ class Migration(migrations.Migration):
                     ),
                 ),
             ],
-            options={"abstract": False},
+            options={
+                "abstract": False,
+            },
         ),
         migrations.CreateModel(
             name="Order",
@@ -63,7 +64,7 @@ class Migration(migrations.Migration):
                 ),
                 (
                     "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
                 ),
                 (
                     "description",
@@ -82,7 +83,6 @@ class Migration(migrations.Migration):
                     "price",
                     djmoney.models.fields.MoneyField(
                         decimal_places=2,
-                        default=Decimal("0.0"),
                         max_digits=16,
                         verbose_name="price (excl. VAT)",
                     ),
@@ -98,19 +98,14 @@ class Migration(migrations.Migration):
                 ),
                 (
                     "vat",
-                    djmoney.models.fields.MoneyField(
+                    djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16, verbose_name="VAT"),
-                        decimal_places=2,
-                        default=Decimal("0.0"),
-                        max_digits=16,
-                        verbose_name="VAT",
-                    ),
                 ),
                 ("is_paid", models.BooleanField(default=False, verbose_name="is paid")),
                 (
                     "account",
                     models.ForeignKey(
                         on_delete=django.db.models.deletion.PROTECT,
-                        to="accounting.Account",
+                        to="accounting.account",
                     ),
                 ),
                 (
@@ -121,60 +116,10 @@ class Migration(migrations.Migration):
                     ),
                 ),
             ],
-            options={"verbose_name": "Order", "verbose_name_plural": "Orders"},
+            options={
-        ),
+                "verbose_name": "Order",
-        migrations.CreateModel(
+                "verbose_name_plural": "Orders",
-            name="Payment",
+            },
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name="ID",
-                    ),
-                ),
-                (
-                    "modified",
-                    models.DateTimeField(auto_now=True, verbose_name="modified"),
-                ),
-                (
-                    "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
-                ),
-                (
-                    "amount_currency",
-                    djmoney.models.fields.CurrencyField(
-                        choices=[("DKK", "DKK")],
-                        default="XYZ",
-                        editable=False,
-                        max_length=3,
-                    ),
-                ),
-                (
-                    "amount",
-                    djmoney.models.fields.MoneyField(
-                        decimal_places=2, default=Decimal("0.0"), max_digits=16
-                    ),
-                ),
-                (
-                    "description",
-                    models.CharField(max_length=1024, verbose_name="description"),
-                ),
-                (
-                    "stripe_charge_id",
-                    models.CharField(blank=True, max_length=255, null=True),
-                ),
-                (
-                    "order",
-                    models.ForeignKey(
-                        on_delete=django.db.models.deletion.PROTECT,
-                        to="accounting.Order",
-                    ),
-                ),
-            ],
-            options={"verbose_name": "payment", "verbose_name_plural": "payments"},
         ),
         migrations.CreateModel(
             name="Transaction",
@@ -194,7 +139,7 @@ class Migration(migrations.Migration):
                 ),
                 (
                     "created",
-                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
                 ),
                 (
                     "amount_currency",
@@ -209,7 +154,6 @@ class Migration(migrations.Migration):
                     "amount",
                     djmoney.models.fields.MoneyField(
                         decimal_places=2,
-                        default=Decimal("0.0"),
                         help_text="This will include VAT",
                         max_digits=16,
                         verbose_name="amount",
@@ -224,10 +168,66 @@ class Migration(migrations.Migration):
                     models.ForeignKey(
                         on_delete=django.db.models.deletion.PROTECT,
                         related_name="transactions",
-                        to="accounting.Account",
+                        to="accounting.account",
                     ),
                 ),
             ],
-            options={"abstract": False},
+            options={
+                "abstract": False,
+            },
+        ),
+        migrations.CreateModel(
+            name="Payment",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "modified",
+                    models.DateTimeField(auto_now=True, verbose_name="modified"),
+                ),
+                (
+                    "created",
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
+                ),
+                (
+                    "amount_currency",
+                    djmoney.models.fields.CurrencyField(
+                        choices=[("DKK", "DKK")],
+                        default="XYZ",
+                        editable=False,
+                        max_length=3,
+                    ),
+                ),
+                (
+                    "amount",
+                    djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16),
+                ),
+                (
+                    "description",
+                    models.CharField(max_length=1024, verbose_name="description"),
+                ),
+                (
+                    "stripe_charge_id",
+                    models.CharField(blank=True, max_length=255, null=True),
+                ),
+                (
+                    "order",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to="accounting.order",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "payment",
+                "verbose_name_plural": "payments",
+            },
         ),
     ]

src/accounting/migrations/0002_alter_order_price_currency_alter_order_vat_currency_and_more.py

@@ -0,0 +1,41 @@
+# Generated by Django 5.0.1 on 2024-01-14 11:14
+
+import djmoney.models.fields
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("accounting", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="order",
+            name="price_currency",
+            field=djmoney.models.fields.CurrencyField(
+                choices=[("DKK", "DKK")], default=None, editable=False, max_length=3
+            ),
+        ),
+        migrations.AlterField(
+            model_name="order",
+            name="vat_currency",
+            field=djmoney.models.fields.CurrencyField(
+                choices=[("DKK", "DKK")], default=None, editable=False, max_length=3
+            ),
+        ),
+        migrations.AlterField(
+            model_name="payment",
+            name="amount_currency",
+            field=djmoney.models.fields.CurrencyField(
+                choices=[("DKK", "DKK")], default=None, editable=False, max_length=3
+            ),
+        ),
+        migrations.AlterField(
+            model_name="transaction",
+            name="amount_currency",
+            field=djmoney.models.fields.CurrencyField(
+                choices=[("DKK", "DKK")], default=None, editable=False, max_length=3
+            ),
+        ),
+    ]

src/accounting/migrations/0003_alter_payment_stripe_charge_id.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.0.6 on 2024-07-14 22:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0002_alter_order_price_currency_alter_order_vat_currency_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='payment',
+            name='stripe_charge_id',
+            field=models.CharField(blank=True, default='', max_length=255),
+            preserve_default=False,
+        ),
+    ]

src/accounting/migrations/0004_paymenttype_product_payment_external_transaction_id_and_more.py

@@ -0,0 +1,78 @@
+# Generated by Django 5.0.7 on 2024-07-21 14:12
+
+import django.db.models.deletion
+import djmoney.models.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0003_alter_payment_stripe_charge_id'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PaymentType',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('modified', models.DateTimeField(auto_now=True, verbose_name='modified')),
+                ('created', models.DateTimeField(auto_now_add=True, verbose_name='oprettet')),
+                ('name', models.CharField(max_length=1024, verbose_name='description')),
+                ('description', models.TextField(blank=True, max_length=2048)),
+                ('enabled', models.BooleanField(default=True)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('modified', models.DateTimeField(auto_now=True, verbose_name='modified')),
+                ('created', models.DateTimeField(auto_now_add=True, verbose_name='oprettet')),
+                ('name', models.CharField(max_length=512)),
+                ('price_currency', djmoney.models.fields.CurrencyField(choices=[('DKK', 'DKK')], default=None, editable=False, max_length=3)),
+                ('price', djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16)),
+                ('vat_currency', djmoney.models.fields.CurrencyField(choices=[('DKK', 'DKK')], default=None, editable=False, max_length=3)),
+                ('vat', djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='payment',
+            name='external_transaction_id',
+            field=models.CharField(blank=True, default='', max_length=255),
+        ),
+        migrations.AlterField(
+            model_name='payment',
+            name='stripe_charge_id',
+            field=models.CharField(blank=True, default='', max_length=255),
+        ),
+        migrations.AddField(
+            model_name='payment',
+            name='payment_type',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.PROTECT, to='accounting.paymenttype'),
+            preserve_default=False,
+        ),
+        migrations.CreateModel(
+            name='OrderProduct',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('modified', models.DateTimeField(auto_now=True, verbose_name='modified')),
+                ('created', models.DateTimeField(auto_now_add=True, verbose_name='oprettet')),
+                ('price_currency', djmoney.models.fields.CurrencyField(choices=[('DKK', 'DKK')], default=None, editable=False, max_length=3)),
+                ('price', djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16)),
+                ('vat_currency', djmoney.models.fields.CurrencyField(choices=[('DKK', 'DKK')], default=None, editable=False, max_length=3)),
+                ('vat', djmoney.models.fields.MoneyField(decimal_places=2, max_digits=16)),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='ordered_products', to='accounting.order')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ordered_products', to='accounting.product')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

src/accounting/migrations/0005_remove_order_price_remove_order_price_currency_and_more.py

@@ -0,0 +1,40 @@
+# Generated by Django 5.0.7 on 2024-07-21 14:53
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0004_paymenttype_product_payment_external_transaction_id_and_more'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='order',
+            name='price',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='price_currency',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='vat',
+        ),
+        migrations.RemoveField(
+            model_name='order',
+            name='vat_currency',
+        ),
+        migrations.AlterField(
+            model_name='orderproduct',
+            name='order',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='order_products', to='accounting.order'),
+        ),
+        migrations.AlterField(
+            model_name='orderproduct',
+            name='product',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='order_products', to='accounting.product'),
+        ),
+    ]

src/accounting/migrations/0006_alter_account_owner_alter_order_user.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.0.7 on 2024-07-21 15:17
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0005_remove_order_price_remove_order_price_currency_and_more'),
+        ('membership', '0006_waitinglistentry_alter_membership_options'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='account',
+            name='owner',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='membership.member'),
+        ),
+        migrations.AlterField(
+            model_name='order',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='membership.member'),
+        ),
+    ]

src/accounting/migrations/0007_alter_orderproduct_options_rename_user_order_member_and_more.py

@@ -0,0 +1,42 @@
+# Generated by Django 5.1b1 on 2024-08-01 10:50
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0006_alter_account_owner_alter_order_user'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='orderproduct',
+            options={'verbose_name': 'ordered product', 'verbose_name_plural': 'ordered products'},
+        ),
+        migrations.RenameField(
+            model_name='order',
+            old_name='user',
+            new_name='member',
+        ),
+        migrations.RemoveField(
+            model_name='payment',
+            name='stripe_charge_id',
+        ),
+        migrations.AddField(
+            model_name='orderproduct',
+            name='quantity',
+            field=models.PositiveSmallIntegerField(default=1),
+        ),
+        migrations.AlterField(
+            model_name='orderproduct',
+            name='order',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='accounting.order'),
+        ),
+        migrations.AlterField(
+            model_name='orderproduct',
+            name='product',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to='accounting.product'),
+        ),
+    ]

src/accounting/models.py

@@ -0,0 +1,209 @@
+"""Models for the accounting app."""
+
+from hashlib import md5
+from typing import Self
+
+from django.conf import settings
+from django.contrib import admin
+from django.db import models
+from django.db.models.aggregates import Sum
+from django.utils.translation import gettext as _
+from django.utils.translation import pgettext_lazy
+from djmoney.models.fields import MoneyField
+from djmoney.money import Money
+
+
+class CreatedModifiedAbstract(models.Model):
+    """Abstract model to track creation and modification of objects."""
+
+    modified = models.DateTimeField(auto_now=True, verbose_name=_("modified"))
+    created = models.DateTimeField(auto_now_add=True, verbose_name=_("created"))
+
+    class Meta:
+        abstract = True
+
+
+class Account(CreatedModifiedAbstract):
+    """An account for a user.
+
+    This is the model where we can give access to several users, such that they
+    can decide which account to use to pay for something.
+    """
+
+    owner = models.ForeignKey("membership.Member", on_delete=models.PROTECT)
+
+    def __str__(self) -> str:
+        return f"Account of {self.owner}"
+
+    @property
+    def balance(self) -> Money:
+        """Return the balance of the account."""
+        return self.transactions.all().aggregate(Sum("amount")).get("amount", 0)
+
+
+class Transaction(CreatedModifiedAbstract):
+    """A transaction.
+
+    Tracks in and outgoing events of an account. When an order is received, an
+    amount is subtracted, when a payment is received, an amount is added.
+    """
+
+    account = models.ForeignKey(
+        Account,
+        on_delete=models.PROTECT,
+        related_name="transactions",
+    )
+    amount = MoneyField(
+        verbose_name=_("amount"),
+        max_digits=16,
+        decimal_places=2,
+        help_text=_("This will include VAT"),
+    )
+    description = models.CharField(max_length=1024, verbose_name=_("description"))
+
+    def __str__(self) -> str:
+        return f"Transaction of {self.amount} for {self.account}"
+
+
+class Order(CreatedModifiedAbstract):
+    """An order.
+
+    We assemble the order from a number of products. Once an order is paid, the contents should be
+    considered locked.
+    """
+
+    member = models.ForeignKey("membership.Member", on_delete=models.PROTECT)
+    account = models.ForeignKey(Account, on_delete=models.PROTECT)
+
+    description = models.CharField(max_length=1024, verbose_name=_("description"))
+
+    is_paid = models.BooleanField(default=False, verbose_name=_("is paid"))
+
+    class Meta:
+        verbose_name = pgettext_lazy("accounting", "Order")
+        verbose_name_plural = pgettext_lazy("accounting", "Orders")
+
+    def __str__(self) -> str:
+        return f"Order ID {self.display_id}"
+
+    @property
+    def total(self) -> Money:
+        """Return the total price of the order (excl VAT)."""
+        return sum(item.price * item.quantity for item in self.items.all())
+
+    @property
+    def total_vat(self) -> Money:
+        """Return the total VAT of the order."""
+        return sum(item.vat * item.quantity for item in self.items.all())
+
+    @property
+    @admin.display(
+        ordering=None,
+        description="Total (incl. VAT)",
+        boolean=False,
+    )
+    def total_with_vat(self) -> Money:
+        """Return the TOTAL amount WITH VAT."""
+        return self.total + self.total_vat
+
+    @property
+    def display_id(self) -> str:
+        """Return an id for the order."""
+        return str(self.id).zfill(6)
+
+    @property
+    def payment_token(self) -> str:
+        """Return a token for the payment."""
+        pk = str(self.pk).encode("utf-8")
+        x = md5()  # noqa: S324
+        x.update(pk)
+        extra_hash = (settings.SECRET_KEY + "blah").encode("utf-8")
+        x.update(extra_hash)
+        return x.hexdigest()
+
+
+class Product(CreatedModifiedAbstract):
+    """A generic product, for instance a membership or a service fee."""
+
+    name = models.CharField(max_length=512)
+    price = MoneyField(max_digits=16, decimal_places=2)
+    vat = MoneyField(max_digits=16, decimal_places=2)
+
+    def __str__(self) -> str:
+        return self.name
+
+
+class OrderProduct(CreatedModifiedAbstract):
+    """When a product is ordered, we store the product on the order.
+
+    This includes pricing information.
+    """
+
+    order = models.ForeignKey(Order, on_delete=models.CASCADE, related_name="items")
+    product = models.ForeignKey(Product, on_delete=models.PROTECT)
+    price = MoneyField(max_digits=16, decimal_places=2)
+    vat = MoneyField(max_digits=16, decimal_places=2)
+    quantity = models.PositiveSmallIntegerField(default=1)
+
+    class Meta:
+        verbose_name = _("ordered product")
+        verbose_name_plural = _("ordered products")
+
+    def __str__(self) -> str:
+        return f"{self.product.name}"
+
+    @property
+    def total_with_vat(self) -> Money:
+        """Total price of this item."""
+        return (self.price + self.vat) * self.quantity
+
+
+class Payment(CreatedModifiedAbstract):
+    """A payment is a transaction that is made to pay for an order."""
+
+    amount = MoneyField(max_digits=16, decimal_places=2)
+    order = models.ForeignKey(Order, on_delete=models.PROTECT)
+
+    description = models.CharField(max_length=1024, verbose_name=_("description"))
+
+    payment_type = models.ForeignKey("PaymentType", on_delete=models.PROTECT)
+    external_transaction_id = models.CharField(max_length=255, default="", blank=True)
+
+    class Meta:
+        verbose_name = _("payment")
+        verbose_name_plural = _("payments")
+
+    def __str__(self) -> str:
+        return f"Payment ID {self.display_id}"
+
+    @property
+    def display_id(self) -> str:
+        """Return an id for the payment."""
+        return str(self.id).zfill(6)
+
+    @classmethod
+    def from_order(cls, order: Order, payment_type: "PaymentType") -> Self:
+        """Create a payment from an order."""
+        return cls.objects.create(
+            order=order,
+            user=order.user,
+            amount=order.total + order.total_vat,
+            description=order.description,
+            payment_type=payment_type,
+        )
+
+
+class PaymentType(CreatedModifiedAbstract):
+    """Types of payments available in the system.
+
+    - bank transfer
+    - card payment (specific provider)
+    """
+
+    name = models.CharField(max_length=1024, verbose_name=_("description"))
+    description = models.TextField(max_length=2048, blank=True)
+
+    enabled = models.BooleanField(default=True)
+
+    def __str__(self) -> str:
+        return f"{self.name}"

src/accounting/signals.py

@@ -0,0 +1,36 @@
+"""Loaded with the AppConfig.ready() method."""
+
+from django.core.mail import mail_admins
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from django.utils import timezone
+from membership.models import Membership
+
+from . import models
+
+
+# method for updating
+@receiver(post_save, sender=models.Payment)
+def check_total_amount(sender: models.Payment, instance: models.Payment, **kwargs: dict) -> None:  # noqa: ARG001
+    """Check that we receive Payments with the correct amount."""
+    if instance.amount != instance.order.total_with_vat:
+        mail_admins(
+            "Payment received: wrong amount",
+            f"Please check payment ID {instance.pk}",
+        )
+
+
+@receiver(post_save, sender=models.Payment)
+def mark_order_paid(sender: models.Payment, instance: models.Payment, **kwargs: dict) -> None:  # noqa: ARG001
+    """Mark an order as paid when payment is received."""
+    instance.order.is_paid = True
+    instance.order.save()
+
+
+@receiver(post_save, sender=models.Order)
+def activate_membership(sender: models.Order, instance: models.Order, **kwargs: dict) -> None:  # noqa: ARG001
+    """Mark a membership as activated when its order is marked as paid."""
+    if instance.is_paid:
+        Membership.objects.filter(order=instance, activated=False, activated_on=None).update(
+            activated=True, activated_on=timezone.now()
+        )

src/accounting/templates/accounting/order/cancel.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Payment cancelled" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+        <h2>{% trans "Payment canceled" %}</h2>
+
+        <p>
+            <a href="{% order:detail order_id=order.id %}">{% trans "Return to order page" %}</a>
+        </p>
+
+    </div>
+{% endblock %}

src/accounting/templates/accounting/order/detail.html

@@ -0,0 +1,49 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Order" context "accounting" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+        <h2>Order: {{ order.id }}</h2>
+
+        <p>
+          {% trans "Ordered" context "accounting" %}: {{ order.created }}<br>
+          {% trans "Status" context "accounting" %}: {{ order.is_paid|yesno:_("paid,unpaid") }}
+        </p>
+
+        <table class="table">
+            <thead>
+            <tr>
+                <th>{% trans "Item" context "accounting" %}</th>
+                <th>{% trans "Quantity" %}</th>
+                <th>{% trans "Price" %}</th>
+                <th>{% trans "VAT" %}</th>
+                <th>{% trans "Total" %}</th>
+            </tr>
+            </thead>
+            <tbody>
+            {% for item in order.items.all %}
+                <tr>
+                    <td>{{ item.product.name }}</td>
+                    <td>{{ item.quantity }}</td>
+                    <td>{{ item.price }}</td>
+                    <td>{{ item.vat }}</td>
+                    <td>{{ item.total_with_vat }}</td>
+                </tr>
+            {% endfor %}
+            </tbody>
+        </table>
+
+        <h2>{% trans "Total price" %}: {{ order.total_with_vat }}</h2>
+
+        {% if not order.is_paid %}
+        <p>
+          <a href="{% url "order:pay" order_id=order.pk %}" class="button">{% trans "Pay now" %}</a>
+        </p>
+        {% endif %}
+    </div>
+{% endblock %}

src/accounting/templates/accounting/order/success.html

@@ -0,0 +1,20 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Payment received" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+        <h2>{% trans "Payment received" %}</h2>
+
+        <p>
+        {% blocktrans trimmed with order.id as order_id %}
+            Thanks fellow member! We received your payment for Order {{ order_id }}. We're adding more features to the site, so expect to see a confirmation email (receipt) for the order soon.
+        {% endblocktrans %}
+        </p>
+
+    </div>
+{% endblock %}

src/accounting/tests.py

@@ -8,8 +8,8 @@ from . import models
 # do stuff
 
 
-@pytest.mark.django_db
+@pytest.mark.django_db()
-def test_balance():
+def test_balance() -> None:
     user = User.objects.create_user("test", "lala@adas.com", "1234")
     account = models.Account.objects.create(owner=user)
     assert account.balance == 0

src/accounting/views.py

@@ -0,0 +1,177 @@
+"""Views for the membership app."""
+
+import stripe
+from django.conf import settings
+from django.contrib.sites.models import Site
+from django.core.mail import mail_admins
+from django.db import transaction
+from django.http import HttpRequest
+from django.http import HttpResponse
+from django.shortcuts import get_object_or_404
+from django.shortcuts import redirect
+from django.shortcuts import render
+from django.urls import reverse
+from django.views.decorators.csrf import csrf_exempt
+from django_view_decorator import namespaced_decorator_factory
+from djmoney.money import Money
+
+from . import models
+
+order_view = namespaced_decorator_factory(namespace="order", base_path="order")
+
+stripe.api_key = settings.STRIPE_API_KEY
+
+
+@order_view(
+    paths="<int:order_id>/",
+    name="detail",
+    login_required=True,
+)
+def order_detail(request: HttpRequest, order_id: int) -> HttpResponse:
+    """View to show the details of a member."""
+    user = request.user  # People just need to login to pay something, not necessarily be a member
+    order = models.Order.objects.get(pk=order_id, member=user)
+
+    context = {
+        "order": order,
+    }
+
+    return render(
+        request=request,
+        template_name="accounting/order/detail.html",
+        context=context,
+    )
+
+
+@order_view(
+    paths="<int:order_id>/pay/",
+    name="pay",
+    login_required=True,
+)
+def order_pay(request: HttpRequest, order_id: int) -> HttpResponse:
+    """Create a Stripe session and redirects to Stripe Checkout."""
+    user = request.user  # People just need to login to pay something, not necessarily be a member
+    order = models.Order.objects.get(pk=order_id, member=user)
+    current_site = Site.objects.get_current(request)
+    base_domain = f"https://{current_site.domain}"
+    if settings.DEBUG:
+        f"http://{current_site.domain}"
+
+    try:
+        line_items = []
+        for item in order.items.all():
+            line_items.append(  # noqa: PERF401
+                {
+                    "price_data": {
+                        "currency": item.total_with_vat.currency,
+                        "unit_amount": int((item.price + item.vat).amount * 100),
+                        "product_data": {
+                            "name": item.product.name,
+                        },
+                    },
+                    "quantity": item.quantity,
+                }
+            )
+        checkout_session = stripe.checkout.Session.create(
+            line_items=line_items,
+            metadata={"order_id": order.id},
+            mode="payment",
+            success_url=base_domain + reverse("order:success", kwargs={"order_id": order.id}),
+            cancel_url=base_domain + "/cancel",
+        )
+    except Exception as e:
+        mail_admins("Error in checkout", str(e))
+        raise
+
+    # TODO: Redirect with status=303
+    return redirect(checkout_session.url)
+
+
+@transaction.atomic
+@order_view(
+    paths="<int:order_id>/pay/success/",
+    name="success",
+    login_required=True,
+)
+def success(request: HttpRequest, order_id: int) -> HttpResponse:
+    """Create a Stripe session and redirects to Stripe Checkout.
+
+    From Stripe docs: When you have a webhook endpoint set up to listen for checkout.session.completed events and
+    you set a success_url, Checkout waits for your server to respond to the webhook event delivery before redirecting
+    your customer. If you use this approach, make sure your server responds to checkout.session.completed events as
+    quickly as possible.
+    """
+    user = request.user  # People just need to login to pay something, not necessarily be a member
+    order = get_object_or_404(models.Order, pk=order_id, member=user)
+
+    context = {
+        "order": order,
+    }
+
+    return render(
+        request=request,
+        template_name="accounting/order/success.html",
+        context=context,
+    )
+
+
+@transaction.atomic
+@order_view(
+    paths="<int:order_id>/pay/cancel/",
+    name="cancel",
+    login_required=True,
+)
+def cancel(request: HttpRequest, order_id: int) -> HttpResponse:
+    """Page to display when a payment is canceled."""
+    user = request.user  # People just need to login to pay something, not necessarily be a member
+    order = models.Order.objects.get(pk=order_id, member=user)
+
+    context = {
+        "order": order,
+    }
+
+    return render(
+        request=request,
+        template_name="accounting/order/cancel.html",
+        context=context,
+    )
+
+
+@transaction.atomic
+@order_view(
+    paths="stripe/webhook/",
+    name="webhook",
+)
+@csrf_exempt
+def stripe_webhook(request: HttpRequest) -> HttpResponse:
+    """Handle Stripe webhook.
+
+    https://docs.stripe.com/metadata/use-cases
+    """
+    payload = request.body
+    sig_header = request.headers["stripe-signature"]
+    event = None
+
+    try:
+        event = stripe.Webhook.construct_event(payload, sig_header, settings.STRIPE_ENDPOINT_SECRET)
+    except ValueError:
+        # Invalid payload
+        return HttpResponse(status=400)
+    except stripe.error.SignatureVerificationError:
+        # Invalid signature
+        return HttpResponse(status=400)
+
+    if event["type"] == "checkout.session.completed" or event["type"] == "checkout.session.async_payment_succeeded":
+        # Order is marked paid via signals, Membership is activated via signals.
+        order_id = event["data"]["object"]["metadata"]["order_id"]
+        order = get_object_or_404(models.Order, pk=order_id)
+        if not models.Payment.objects.filter(order=order).exists():
+            models.Payment.objects.create(
+                order=order,
+                amount=Money(event["data"]["object"]["amount_total"] / 100.0, event["data"]["object"]["currency"]),
+                description="Paid via Stripe",
+                payment_type=models.PaymentType.objects.get_or_create(name="Stripe")[0],
+                external_transaction_id=event["id"],
+            )
+
+    return HttpResponse(status=200)

src/manage.py

@@ -10,6 +10,6 @@ if __name__ == "__main__":
         raise ImportError(
             "Couldn't import Django. Are you sure it's installed and "
             "available on your PYTHONPATH environment variable? Did you "
-            "forget to activate a virtual environment?"
+            "forget to activate a virtual environment?",
         )
     execute_from_command_line(sys.argv)

src/membership/__init__.py

@@ -1,8 +1,5 @@
-"""
+"""Membership application.
-Membership application
-======================
 
 This application's domain relate to organizational structures and
 implementation of statutes, policies etc.
-
 """

src/membership/admin.py

@@ -0,0 +1,168 @@
+"""Admin configuration for membership app."""
+
+from collections.abc import Callable
+
+from accounting.models import Account
+from accounting.models import Order
+from accounting.models import OrderProduct
+from django.contrib import admin
+from django.contrib import messages
+from django.contrib.admin import ModelAdmin
+from django.contrib.auth.admin import UserAdmin
+from django.contrib.auth.models import User
+from django.db import transaction
+from django.db.models import QuerySet
+from django.http import HttpRequest
+from django.http import HttpResponse
+from django.utils.text import slugify
+
+from .emails import InviteEmail
+from .models import Member
+from .models import Membership
+from .models import MembershipType
+from .models import SubscriptionPeriod
+from .models import WaitingListEntry
+
+# Do not use existing user admin
+admin.site.unregister(User)
+
+
+@admin.register(Membership)
+class MembershipAdmin(admin.ModelAdmin):
+    """Admin for Membership model."""
+
+    list_display = ("user", "period", "membership_type", "activated", "revoked")
+    list_filter = ("period", "membership_type", "activated", "revoked")
+    search_fields = ("membership_type__name", "user__email", "user__first_name", "user__last_name")
+
+
+@admin.register(MembershipType)
+class MembershipTypeAdmin(admin.ModelAdmin):
+    """Admin for MembershipType model."""
+
+
+@admin.register(SubscriptionPeriod)
+class SubscriptionPeriodAdmin(admin.ModelAdmin):
+    """Admin for SubscriptionPeriod model."""
+
+
+class MembershipInlineAdmin(admin.TabularInline):
+    """Inline admin."""
+
+    model = Membership
+
+
+def decorate_ensure_membership_type_exists(membership_type: MembershipType, label: str) -> Callable:
+    """Generate an admin action for given membership type and label."""
+
+    @admin.action(description=label)
+    def admin_action(modeladmin: ModelAdmin, request: HttpRequest, queryset: QuerySet) -> HttpResponse:  # noqa: ARG001
+        return ensure_membership_type_exists(request, queryset, membership_type)
+
+    return admin_action
+
+
+@transaction.atomic
+def ensure_membership_type_exists(
+    request: HttpRequest,
+    queryset: QuerySet[Member],
+    membership_type: MembershipType,
+) -> HttpResponse:
+    """Inner function that ensures that a membership exists for a given queryset of Member objects."""
+    for member in queryset:
+        if member.memberships.filter(membership_type=membership_type).current():
+            messages.info(request, f"{member} already has a membership {membership_type}")
+        else:
+            # Get the default account of the member. We don't really know what to do if a person owns multiple accounts.
+            account, __ = Account.objects.get_or_create(owner=member)
+            # Create an Order for the products in the membership
+            order = Order.objects.create(member=member, account=account, description=membership_type.name)
+            # Add stuff to the order
+            for product in membership_type.products.all():
+                OrderProduct.objects.create(order=order, product=product, price=product.price, vat=product.vat)
+            # Create the Membership
+            Membership.objects.create(
+                membership_type=membership_type,
+                user=member,
+                period=SubscriptionPeriod.objects.current(),
+                order=order,
+            )
+
+            # Associate the order with that membership
+            messages.success(request, f"{member} has ordered a '{membership_type}' (unpaid)")
+
+
+@admin.register(Member)
+class MemberAdmin(UserAdmin):
+    """Member admin is actually an admin for User objects."""
+
+    inlines = (MembershipInlineAdmin,)
+    actions: list[str | Callable] = ["send_invite"]  # noqa: RUF012
+    list_display = ("email", "current_membership", "username", "is_staff", "is_active", "date_joined")
+
+    @admin.display(description="membership")
+    def current_membership(self, instance: Member) -> Membership | None:
+        return instance.memberships.current()
+
+    def get_actions(self, request: HttpRequest) -> dict:
+        """Populate actions with dynamic data (MembershipType)."""
+        current_period = SubscriptionPeriod.objects.current()
+
+        super_dict = super().get_actions(request)
+
+        if current_period:
+            for i, mtype in enumerate(MembershipType.objects.filter(active=True)):
+                action_label = f"Ensure membership {mtype.name}, {current_period.period}, {mtype.total_including_vat}"
+                action_func = decorate_ensure_membership_type_exists(mtype, action_label)
+                # Django ModelAdmin uses the non-unique __name__ property, so we need to suffix it to make it unique
+                action_func.__name__ += f"_{i}"
+                self.actions.append(action_func)
+
+        return super_dict
+
+    @admin.action(description="Send invite email to selected inactive accounts")
+    def send_invite(self, request: HttpRequest, queryset: QuerySet[Member]) -> None:
+        for member in queryset:
+            if member.is_active:
+                messages.error(
+                    request,
+                    f"Computer says no! This member will not receive an invite because the account is marked "
+                    f"as active: {member.email}. That means the member has probably created a password and a username "
+                    f"already, please tell them to use the password reminder function.",
+                )
+                continue
+            if not member.memberships.current():
+                messages.error(
+                    request,
+                    f"Computer says no! This member will not receive an invite because it has no current "
+                    f"membership: {member.email}. You need to create a current membership before sending the invite.",
+                )
+                continue
+            membership = member.memberships.current()
+            email = InviteEmail(membership, request)
+            email.send()
+            messages.success(request, f"Sent an invitation to: {member.email}")
+
+
+@admin.register(WaitingListEntry)
+class WaitingListEntryAdmin(admin.ModelAdmin):
+    """Admin for WaitingList model."""
+
+    list_display = ("email", "member")
+    actions = ("create_member",)
+
+    @admin.action(description="Create member account for entries")
+    def create_member(self, request: HttpRequest, queryset: QuerySet[WaitingListEntry]) -> None:
+        """Create a user account for this entry.
+
+        Note that actions can soon be made available from the edit page, too:
+        https://github.com/django/django/pull/16012
+        """
+        for entry in queryset:
+            member = Member.objects.create_user(email=entry.email, username=slugify(entry.email), is_active=False)
+            entry.member = member
+            entry.save()
+            messages.info(
+                request,
+                f"Added user for {entry.email} - ensure they have a membership and send an invite email.",
+            )

src/membership/apps.py

@@ -0,0 +1,16 @@
+"""Membership app configuration."""
+
+from django.apps import AppConfig
+from django.db.models.signals import post_migrate
+
+
+class MembershipConfig(AppConfig):
+    """Membership app config."""
+
+    name = "membership"
+
+    def ready(self) -> None:
+        """Ready method."""
+        from .permissions import persist_permissions
+
+        post_migrate.connect(persist_permissions, sender=self)

src/membership/emails.py

@@ -0,0 +1,128 @@
+"""Send email to members, using templates and contexts for the emails.
+
+* We keep everything as plain text for now.
+* Notice that emails can be multilingual
+* Generally, an email consists of templates (for body and subject) and a get_context() method.
+"""
+
+from accounting.models import Order
+from django.contrib import messages
+from django.contrib.auth.tokens import default_token_generator
+from django.contrib.sites.shortcuts import get_current_site
+from django.core.mail.message import EmailMessage
+from django.http import HttpRequest
+from django.template import loader
+from django.utils import translation
+from django.utils.translation import gettext_lazy as _
+
+from .models import Membership
+
+
+class BaseEmail(EmailMessage):
+    """Send emails via templated body and subjects.
+
+    This base class is extended for all email functionality.
+    Because all emails are sent to the Member object, we can keep them gathered here, even when they are generated by
+    other apps (like the accounting app).
+    """
+
+    template = "membership/email/base.txt"
+    # Optional: Set to a template path for subject
+    template_subject = None
+    default_subject = "SET SUBJECT HERE"
+
+    def __init__(self, request: HttpRequest, *args, **kwargs) -> None:
+        self.context = kwargs.pop("context", {})
+        self.user = kwargs.pop("user", None)
+        if self.user:
+            kwargs["to"] = [self.user.email]
+            self.context["user"] = self.user
+            self.context["recipient_name"] = self.user.get_display_name()
+
+        # Necessary to set request before instantiating body and subject
+        self.request = request
+        kwargs.setdefault("subject", self.get_subject())
+        kwargs.setdefault("body", self.get_body())
+
+        super().__init__(*args, **kwargs)
+
+    def get_context_data(self) -> dict:
+        """Resolve common context for sending emails.
+
+        When overwriting, remember to call this via super().
+        """
+        c = self.context
+        site = get_current_site(self.request)
+        c["request"] = self.request
+        c["domain"] = site.domain
+        c["site_name"] = site.name
+        c["protocol"] = "https"  # if self.request and not self.request.is_secure() else "https"
+        return c
+
+    def get_body(self) -> str:
+        """Build the email body from template and context."""
+        if self.user and self.user.language_code:
+            with translation.override(self.user.language_code):
+                body = loader.render_to_string(self.template, self.get_context_data())
+        else:
+            body = loader.render_to_string(self.template, self.get_context_data())
+        return body
+
+    def get_subject(self) -> str:
+        """Build the email subject from template or self.default_subject."""
+        if self.user and self.user.language_code:
+            with translation.override(self.user.language_code):
+                if self.template_subject:
+                    subject = loader.render_to_string(self.template_subject, self.get_context_data()).strip()
+                else:
+                    subject = str(self.default_subject)
+        elif self.template_subject:
+            subject = loader.render_to_string(self.template_subject, self.get_context_data()).strip()
+        else:
+            subject = str(self.default_subject)
+        return subject
+
+    def send_with_feedback(self, *, success_msg: str | None = None, no_message: bool = False) -> None:
+        """Send email, possibly adding feedback via django.contrib.messages."""
+        if not success_msg:
+            success_msg = _("Email successfully sent to {}").format(", ".join(self.to))
+        try:
+            self.send(fail_silently=False)
+            if not no_message:
+                messages.success(self.request, success_msg)
+        except RuntimeError:
+            messages.error(self.request, _("Not sent, something wrong with the mail server."))
+
+
+class InviteEmail(BaseEmail):
+    template = "membership/emails/invite.txt"
+    default_subject = _("Invite to data.coop membership")
+
+    def __init__(self, membership: Membership, request: HttpRequest, *args, **kwargs) -> None:
+        self.membership = membership
+        kwargs["user"] = membership.user
+        kwargs["from_email"] = "kasserer@data.coop"
+        super().__init__(request, *args, **kwargs)
+
+    def get_context_data(self) -> dict:
+        c = super().get_context_data()
+        c["membership"] = self.membership
+        c["token"] = default_token_generator.make_token(self.membership.user)
+        c["referral_code"] = self.membership.referral_code
+        return c
+
+
+class OrderEmail(BaseEmail):
+    template = "membership/emails/order.txt"
+    default_subject = _("Your data.coop order and payment")
+
+    def __init__(self, order: Order, request: HttpRequest, *args, **kwargs) -> None:
+        self.order = order
+        kwargs["user"] = order.member
+        kwargs["from_email"] = "kasserer@data.coop"
+        super().__init__(request, *args, **kwargs)
+
+    def get_context_data(self) -> dict:
+        c = super().get_context_data()
+        c["order"] = self.order
+        return c

src/membership/forms.py

@@ -0,0 +1,39 @@
+from allauth.account.adapter import get_adapter as get_allauth_adapter
+from allauth.account.forms import SetPasswordForm
+from django import forms
+from django.utils.translation import gettext_lazy as _
+
+
+class InviteForm(SetPasswordForm):
+    """Create a new password for a user account that is created through an invite."""
+
+    username = forms.CharField(
+        label=_("Username"),
+        widget=forms.TextInput(attrs={"placeholder": _("Username"), "autocomplete": "username"}),
+    )
+
+    def __init__(self, *args, **kwargs) -> None:
+        self.membership = kwargs.pop("membership")
+        kwargs["user"] = self.membership.user
+        super().__init__(*args, **kwargs)
+
+    def clean_username(self) -> str:
+        """Clean the username value.
+
+        Taken from the allauth Signup form - we should consider that data can be leaked here.
+        """
+        value = self.cleaned_data["username"]
+        # The allauth adapter ensures the username is unique.
+        return get_allauth_adapter().clean_username(value)
+
+    def save(self) -> None:
+        """Save instance to db.
+
+        Note: You can hack a re-activation of a deactivated account
+        by getting a valid token before deactivation (from the reset password form).
+        We can block this by also setting Membership.revoked=False when deactivating someone's account.
+        """
+        self.user.username = self.cleaned_data["username"]
+        self.user.is_active = True
+        self.user.save()
+        super().save()

src/membership/migrations/0001_initial.py

@@ -0,0 +1,92 @@
+# Generated by Django 3.1.7 on 2021-02-28 21:09
+import django.contrib.postgres.fields.ranges
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="MembershipType",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "modified",
+                    models.DateTimeField(auto_now=True, verbose_name="modified"),
+                ),
+                (
+                    "created",
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
+                ),
+                ("name", models.CharField(max_length=64, verbose_name="navn")),
+            ],
+            options={
+                "verbose_name": "membership type",
+                "verbose_name_plural": "membership types",
+            },
+        ),
+        migrations.CreateModel(
+            name="Membership",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "modified",
+                    models.DateTimeField(auto_now=True, verbose_name="modified"),
+                ),
+                (
+                    "created",
+                    models.DateTimeField(auto_now_add=True, verbose_name="oprettet"),
+                ),
+                (
+                    "period",
+                    django.contrib.postgres.fields.ranges.DateTimeRangeField(
+                        help_text="The duration this subscription is for. "
+                    ),
+                ),
+                (
+                    "membership_type",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT,
+                        related_name="memberships",
+                        to="membership.membershiptype",
+                        verbose_name="subscription type",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "membership",
+                "verbose_name_plural": "memberships",
+            },
+        ),
+    ]

src/membership/migrations/0002_subscriptionperiod_remove_membership_period_and_more.py

@@ -0,0 +1,61 @@
+# Generated by Django 4.1 on 2023-01-02 21:05
+
+import django.contrib.postgres.constraints
+import django.contrib.postgres.fields.ranges
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("membership", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="SubscriptionPeriod",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "modified",
+                    models.DateTimeField(auto_now=True, verbose_name="modified"),
+                ),
+                (
+                    "created",
+                    models.DateTimeField(auto_now_add=True, verbose_name="created"),
+                ),
+                (
+                    "period",
+                    django.contrib.postgres.fields.ranges.DateRangeField(verbose_name="period"),
+                ),
+            ],
+        ),
+        migrations.RemoveField(
+            model_name="membership",
+            name="period",
+        ),
+        migrations.AlterField(
+            model_name="membership",
+            name="created",
+            field=models.DateTimeField(auto_now_add=True, verbose_name="created"),
+        ),
+        migrations.AlterField(
+            model_name="membershiptype",
+            name="created",
+            field=models.DateTimeField(auto_now_add=True, verbose_name="created"),
+        ),
+        migrations.AddConstraint(
+            model_name="subscriptionperiod",
+            constraint=django.contrib.postgres.constraints.ExclusionConstraint(
+                expressions=[("period", "&&")], name="exclude_overlapping_periods"
+            ),
+        ),
+    ]

src/membership/migrations/0003_membership_period.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.1 on 2023-01-02 21:05
+
+import django.db.models.deletion
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("membership", "0002_subscriptionperiod_remove_membership_period_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="membership",
+            name="period",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                to="membership.subscriptionperiod",
+            ),
+        ),
+    ]

src/membership/migrations/0004_alter_membership_period.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.1 on 2023-01-02 21:06
+
+import django.db.models.deletion
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("membership", "0003_membership_period"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="membership",
+            name="period",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.PROTECT,
+                to="membership.subscriptionperiod",
+            ),
+        ),
+    ]

src/membership/migrations/0005_member.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.1.5 on 2023-09-16 14:09
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("auth", "0012_alter_user_first_name_max_length"),
+        ("membership", "0004_alter_membership_period"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Member",
+            fields=[],
+            options={
+                "proxy": True,
+                "indexes": [],
+                "constraints": [],
+            },
+            bases=("auth.user",),
+        ),
+    ]

src/membership/migrations/0006_waitinglistentry_alter_membership_options.py

@@ -0,0 +1,32 @@
+# Generated by Django 5.0.7 on 2024-07-20 20:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0005_member'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='WaitingListEntry',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('modified', models.DateTimeField(auto_now=True, verbose_name='modified')),
+                ('created', models.DateTimeField(auto_now_add=True, verbose_name='created')),
+                ('email', models.EmailField(max_length=254)),
+                ('geography', models.CharField(blank=True, default='', verbose_name='geography')),
+                ('comment', models.TextField(blank=True)),
+            ],
+            options={
+                'verbose_name': 'waiting list entry',
+                'verbose_name_plural': 'waiting list entries',
+            },
+        ),
+        migrations.AlterModelOptions(
+            name='membership',
+            options={'verbose_name': 'medlemskab', 'verbose_name_plural': 'medlemskaber'},
+        ),
+    ]

src/membership/migrations/0007_membership_activated_membership_activated_on_and_more.py

@@ -0,0 +1,62 @@
+# Generated by Django 5.1b1 on 2024-08-01 10:50
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounting', '0007_alter_orderproduct_options_rename_user_order_member_and_more'),
+        ('membership', '0006_waitinglistentry_alter_membership_options'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='membership',
+            name='activated',
+            field=models.BooleanField(default=False, help_text='Membership was activated.', verbose_name='activated'),
+        ),
+        migrations.AddField(
+            model_name='membership',
+            name='activated_on',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='membership',
+            name='order',
+            field=models.ForeignKey(blank=True, help_text='The order filled in for paying this membership.', null=True, on_delete=django.db.models.deletion.PROTECT, to='accounting.order', verbose_name='order'),
+        ),
+        migrations.AddField(
+            model_name='membership',
+            name='revoked',
+            field=models.BooleanField(default=False, help_text='Membership has explicitly been revoked. Revoking a membership is not associated with regular expiration of the membership period.', verbose_name='revoked'),
+        ),
+        migrations.AddField(
+            model_name='membership',
+            name='revoked_on',
+            field=models.DateTimeField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='membership',
+            name='revoked_reason',
+            field=models.TextField(blank=True),
+        ),
+        migrations.AddField(
+            model_name='membershiptype',
+            name='active',
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name='membershiptype',
+            name='products',
+            field=models.ManyToManyField(to='accounting.product'),
+        ),
+        migrations.AlterField(
+            model_name='membership',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='memberships', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

src/membership/migrations/0008_alter_membership_membership_type.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1b1 on 2024-08-04 10:26
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0007_membership_activated_membership_activated_on_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='membership',
+            name='membership_type',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='memberships', to='membership.membershiptype', verbose_name='membership type'),
+        ),
+    ]

src/membership/migrations/0009_membership_referral_code.py

@@ -0,0 +1,32 @@
+# Generated by Django 5.1rc1 on 2024-08-07 22:32
+
+import uuid
+from django.db import migrations, models
+
+
+def create_uuid(apps, schema_editor):
+    Membership = apps.get_model('membership', 'Membership')
+    for membership in Membership.objects.all():
+        membership.referral_code = uuid.uuid4()
+        membership.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0008_alter_membership_membership_type'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='membership',
+            name='referral_code',
+            field=models.UUIDField(blank=True, null=True, default=uuid.uuid4, editable=False),
+        ),
+        migrations.RunPython(create_uuid),
+        migrations.AlterField(
+            model_name='membership',
+            name='referral_code',
+            field=models.UUIDField(unique=True, default=uuid.uuid4, editable=False),
+        ),
+    ]

src/membership/migrations/0010_waitinglistentry_member.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1rc1 on 2024-08-14 08:05
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0009_membership_referral_code'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='waitinglistentry',
+            name='member',
+            field=models.ForeignKey(help_text='Once a member account is generated (use the admin action), this field will be marked.', null=True, blank=True, on_delete=django.db.models.deletion.CASCADE, to='membership.member', verbose_name='has member'),
+        ),
+    ]

src/membership/models.py

@@ -0,0 +1,247 @@
+"""Models for the membership app."""
+
+import uuid
+from typing import ClassVar
+from typing import Self
+
+from django.contrib.auth.models import User
+from django.contrib.auth.models import UserManager
+from django.contrib.postgres.constraints import ExclusionConstraint
+from django.contrib.postgres.fields import DateRangeField
+from django.contrib.postgres.fields import RangeOperators
+from django.db import models
+from django.utils import timezone
+from django.utils.translation import gettext as _
+from djmoney.money import Money
+from utils.mixins import CreatedModifiedAbstract
+
+
+class NoSubscriptionPeriodFoundError(Exception):
+    """Raised when no subscription period is found."""
+
+
+class Member(User):
+    """Proxy model for the User model to add some convenience methods."""
+
+    class QuerySet(models.QuerySet):
+        """QuerySet for the Member model."""
+
+        def annotate_membership(self) -> Self:
+            """Annotate whether the user has an active membership."""
+            from .selectors import get_current_subscription_period
+
+            current_subscription_period = get_current_subscription_period()
+
+            if not current_subscription_period:
+                raise NoSubscriptionPeriodFoundError
+
+            return self.annotate(
+                active_membership=models.Exists(
+                    Membership.objects.filter(
+                        user=models.OuterRef("pk"),
+                        period=current_subscription_period.id,
+                    ),
+                ),
+            )
+
+    objects = UserManager.from_queryset(QuerySet)()
+
+    def get_display_name(self) -> str:
+        """Choose how to display the user in emails and UI and ultimately to other users.
+
+        It's crucial that we currently don't have a good solution for this.
+        We should allow the user to define their own nick.
+        """
+        return self.username
+
+    @property
+    def language_code(self) -> str:
+        """Returns the user's preferred language code.
+
+        We don't have an actual setting for this... because this is a proxy table.
+        """
+        return "da-dk"
+
+    class Meta:
+        proxy = True
+
+
+class SubscriptionPeriod(CreatedModifiedAbstract):
+    """A subscription period.
+
+    Denotes a period for which members should pay their membership fee for.
+    """
+
+    class QuerySet(models.QuerySet):
+        """QuerySet for the Membership model."""
+
+        def _current(self) -> Self:
+            """Filter memberships for the current period."""
+            return self.filter(period__contains=timezone.now())
+
+        def current(self) -> "Membership | None":
+            """Get the current membership."""
+            try:
+                return self._current().get()
+            except self.model.DoesNotExist:
+                return None
+
+    objects = QuerySet.as_manager()
+
+    period = DateRangeField(verbose_name=_("period"))
+
+    class Meta:
+        constraints: ClassVar = [
+            ExclusionConstraint(
+                name="exclude_overlapping_periods",
+                expressions=[
+                    ("period", RangeOperators.OVERLAPS),
+                ],
+            ),
+        ]
+
+    def __str__(self) -> str:
+        return f"{self.period.lower} - {self.period.upper or _('next general assembly')}"
+
+
+class Membership(CreatedModifiedAbstract):
+    """A membership.
+
+    Tracks that a user has membership of a given type for a given period.
+    """
+
+    class QuerySet(models.QuerySet):
+        """QuerySet for the Membership model."""
+
+        def for_member(self, member: Member) -> Self:
+            """Filter memberships for a given member."""
+            return self.filter(user=member)
+
+        def active(self) -> Self:
+            """Get only activated, non-revoked memberships (may have expired so use also current())."""
+            return self.filter(activated=True, revoked=False)
+
+        def _current(self) -> Self:
+            """Filter memberships for the current period."""
+            return self.filter(period__period__contains=timezone.now())
+
+        def current(self) -> "Membership | None":
+            """Get the current membership."""
+            return self._current().first()
+
+        def previous(self) -> list["Membership"]:
+            """Get previous memberships."""
+            # A naïve way to get previous by just excluding the current. This
+            # means that there must be some protection against "future"
+            # memberships.
+            return list(self.all().difference(self._current()))
+
+    objects = QuerySet.as_manager()
+
+    user = models.ForeignKey("auth.User", on_delete=models.PROTECT, related_name="memberships")
+
+    # This code is used for inviting a user to create an account for this membership.
+    referral_code = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
+
+    membership_type = models.ForeignKey(
+        "membership.MembershipType",
+        related_name="memberships",
+        verbose_name=_("membership type"),
+        on_delete=models.PROTECT,
+    )
+
+    period = models.ForeignKey(
+        "membership.SubscriptionPeriod",
+        on_delete=models.PROTECT,
+    )
+
+    order = models.ForeignKey(
+        "accounting.Order",
+        null=True,
+        blank=True,
+        verbose_name=_("order"),
+        help_text=_("The order filled in for paying this membership."),
+        on_delete=models.PROTECT,
+    )
+
+    activated = models.BooleanField(
+        default=False, verbose_name=_("activated"), help_text=_("Membership was activated.")
+    )
+    activated_on = models.DateTimeField(null=True, blank=True)
+
+    revoked = models.BooleanField(
+        default=False,
+        verbose_name=_("revoked"),
+        help_text=_(
+            "Membership has explicitly been revoked. Revoking a membership is not associated with regular expiration "
+            "of the membership period."
+        ),
+    )
+    revoked_reason = models.TextField(blank=True)
+    revoked_on = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        verbose_name = _("membership")
+        verbose_name_plural = _("memberships")
+
+    def __str__(self) -> str:
+        return f"{self.user} - {self.period}"
+
+
+class MembershipType(CreatedModifiedAbstract):
+    """A membership type.
+
+    Models membership types. Currently only a name, but will in the future
+    possibly contain more information like fees.
+    """
+
+    name = models.CharField(verbose_name=_("name"), max_length=64)
+
+    products = models.ManyToManyField("accounting.Product")
+
+    active = models.BooleanField(default=True)
+
+    class Meta:
+        verbose_name = _("membership type")
+        verbose_name_plural = _("membership types")
+
+    def __str__(self) -> str:
+        return self.name
+
+    def create_membership(self, user: User) -> Membership:
+        """Create a current membership for this type."""
+        from .selectors import get_current_subscription_period
+
+        return Membership.objects.create(
+            membership_type=self,
+            user=user,
+            period=get_current_subscription_period(),
+        )
+
+    @property
+    def total_including_vat(self) -> Money:
+        """Calculate the total price of this membership (including VAT)."""
+        return sum(product.price + product.vat for product in self.products.all())
+
+
+class WaitingListEntry(CreatedModifiedAbstract):
+    """People who for some reason could want to be added to a waiting list and invited to join later."""
+
+    email = models.EmailField()
+    geography = models.CharField(verbose_name=_("geography"), blank=True, default="")
+    comment = models.TextField(blank=True)
+    member = models.ForeignKey(
+        Member,
+        null=True,
+        blank=True,
+        verbose_name=_("has member"),
+        help_text=_("Once a member account is generated (use the admin action), this field will be marked."),
+        on_delete=models.CASCADE,
+    )
+
+    def __str__(self) -> str:
+        return self.email
+
+    class Meta:
+        verbose_name = _("waiting list entry")
+        verbose_name_plural = _("waiting list entries")

src/membership/permissions.py

@@ -0,0 +1,54 @@
+"""Permissions for the membership app."""
+
+from dataclasses import dataclass
+
+from django.contrib.auth.models import Permission as DjangoPermission
+from django.contrib.contenttypes.models import ContentType
+from django.utils.translation import gettext_lazy as _
+
+PERMISSIONS = []
+
+
+def persist_permissions(*args, **kwargs) -> None:  # type: ignore[no-untyped-def] # noqa: ARG001
+    """Persist all permissions."""
+    for permission in PERMISSIONS:
+        permission.persist_permission()
+
+
+@dataclass
+class Permission:
+    """Dataclass to define a permission."""
+
+    name: str
+    codename: str
+    app_label: str
+    model: str
+
+    def __post_init__(self, *args, **kwargs) -> None:
+        """Post init method."""
+        PERMISSIONS.append(self)
+
+    @property
+    def path(self) -> str:
+        """Return the path of the permission."""
+        return f"{self.app_label}.{self.codename}"
+
+    def persist_permission(self) -> None:
+        """Persist the permission."""
+        content_type, _ = ContentType.objects.get_or_create(
+            app_label=self.app_label,
+            model=self.model,
+        )
+        DjangoPermission.objects.get_or_create(
+            content_type=content_type,
+            codename=self.codename,
+            defaults={"name": self.name},
+        )
+
+
+ADMINISTRATE_MEMBERS = Permission(
+    name=_("Can administrate members"),
+    codename="administrate_members",
+    app_label="membership",
+    model="membership",
+)

src/membership/selectors.py

@@ -0,0 +1,73 @@
+"""Selectors for the membership app."""
+
+from __future__ import annotations
+
+import contextlib
+from typing import TYPE_CHECKING
+
+from django.db.models import Exists
+from django.db.models import OuterRef
+from django.utils import timezone
+
+from membership.models import Member
+from membership.models import Membership
+from membership.models import SubscriptionPeriod
+
+if TYPE_CHECKING:
+    from django.db.models.query import QuerySet
+
+
+def get_subscription_periods(member: Member | None = None) -> list[SubscriptionPeriod]:
+    """Get all subscription periods."""
+    subscription_periods = SubscriptionPeriod.objects.prefetch_related(
+        "membership_set",
+        "membership_set__user",
+    ).all()
+
+    if member:
+        subscription_periods = subscription_periods.annotate(
+            membership_exists=Exists(
+                Membership.objects.filter(
+                    user=member,
+                    period=OuterRef("pk"),
+                ),
+            ),
+        ).filter(membership_exists=True)
+
+    return list(subscription_periods)
+
+
+def get_current_subscription_period() -> SubscriptionPeriod | None:
+    """Get the current subscription period."""
+    with contextlib.suppress(SubscriptionPeriod.DoesNotExist):
+        return SubscriptionPeriod.objects.prefetch_related(
+            "membership_set",
+            "membership_set__user",
+        ).get(period__contains=timezone.now())
+
+
+def get_memberships(
+    *,
+    member: Member | None = None,
+    period: SubscriptionPeriod | None = None,
+) -> Membership.QuerySet:
+    """Get memberships."""
+    memberships = Membership.objects.select_related("membership_type").all()
+
+    if member:
+        memberships = memberships.for_member(member=member)
+
+    if period:
+        memberships = memberships.filter(period=period)
+
+    return memberships
+
+
+def get_members() -> QuerySet[Member]:
+    """Get all members."""
+    return Member.objects.all().annotate_membership().order_by("username")
+
+
+def get_member(*, member_id: int) -> Member:
+    """Get a member by id."""
+    return get_members().get(id=member_id)

src/membership/templates/membership/emails/base.txt

@@ -0,0 +1,9 @@
+{% load i18n %}{% block greeting %}{% blocktrans %}Dear {{ recipient_name }},{% endblocktrans %}{% endblock %}
+
+{% block content %}{% endblock %}
+
+
+{% trans "Cooperatively yours," %}
+{{ site_name }}
+
+{{ protocol }}://{{ domain }}

src/membership/templates/membership/emails/invite.txt

@@ -0,0 +1,7 @@
+{% extends "membership/emails/base.txt" %}{% load i18n %}
+
+{% block content %}{% url 'member:membership-invite' token=token referral_code=referral_code as invite_url %}{% blocktrans %}Here is your secret URL for creating an account with us:
+
+{{ protocol }}://{{ domain }}{{ invite_url }}
+
+If you did not request this account, get in touch with us.{% endblocktrans %}{% endblock %}

src/membership/templates/membership/emails/order.txt

@@ -0,0 +1,17 @@
+{% extends "membership/emails/base.txt" %}{% load i18n %}
+
+{% block content %}{% url 'order:detail' order_id=order.id as order_url %}{% blocktrans %}You have an order in our system, which you can pay here:
+
+{{ protocol }}://{{ domain }}{{ order_url }}
+
+We used to handle membership stuff in a spreadsheet and via bank transfers. This is now all handled with our custom-made membership system. We hope you like it.
+
+If you received this email and no longer want a membership, you can ignore it. But please let us know by writing board@data.coop, so we can erase any personal data we have about your previous membership.
+
+Dansk:
+
+Hej! Så kører medlemsystemet endeligt! Det er mega-fedt, fordi vi længe har haft besvær med manuelle procedurer. Nu har vi flyttet medlemsdata over på member.data.coop, og betalingen fungerer. Vi kan dermed fremover arbejde stille og roligt på at integrere systemet, så man kan styre sine services via medlemssystemet.
+
+Hvis du ikke længere vil være medlem, kan du ignorere mailen her; men du må meget gerne informere os via board@data.coop, så vi kan slette evt. personlige data og services, du har kørende på dit tidligere medlemskab.
+
+{% endblocktrans %}{% endblock %}

src/membership/templates/membership/invite.html

@@ -0,0 +1,21 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Membership" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+        <h2>{% trans "Create account" %}</h2>
+        <p>{% trans "Congratulations! You've been invited to create an account with us:" %}</p>
+        <p>Email: <strong>{{ membership.user.email }}</strong></p>
+        <form method="POST">
+            {% csrf_token %}
+            {{ form.as_p }}
+            <button type="submit" class="btn">{% trans "Create account" %}</button>
+        </form>
+
+    </div>
+{% endblock %}

src/membership/templates/membership/members_admin_detail.html

@@ -0,0 +1,45 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Member detail" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+    <h1>
+        {{ member.username }}
+    </h1>
+
+    <hr>
+
+    <h3>{% trans "Membership" %}</h3>
+
+    {% if subscription_periods %}
+        <table class="table">
+            <thead>
+            <tr>
+                <th>{% trans "Start" %}</th>
+                <th>{% trans "End" %}</th>
+                <th>{% trans "Has membership" %}</th>
+                <th>{% trans "Actions" %}</th>
+            </tr>
+            </thead>
+            <tbody>
+            {% for period in subscription_periods %}
+                <tr {% if not period.period.upper %}class="table-active"{% endif %}>
+                    <td>{{ period.period.lower }}</td>
+                    <td>{{ period.period.upper }}</td>
+                    <td>{{ period.membership_exists }}</td>
+                    <td></td>
+                </tr>
+            {% endfor %}
+            </tbody>
+        </table>
+    {% else %}
+        {% trans "No memberships" %}
+    {% endif %}
+    </div>
+
+{% endblock %}

src/membership/templates/membership/membership_overview.html

@@ -0,0 +1,63 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block head_title %}
+    {% trans "Membership" %}
+{% endblock %}
+
+{% block content %}
+
+    <div class="content-view">
+        <h2>Membership settings</h2>
+    {% if not current_membership %}
+        <p>{% trans "You do not have an active membership!" %}</p>
+
+        <p>{% trans "You can become a member by depositing the membership fee to our bank account." %}</p>
+
+        <ul>
+            <li>Reg. 8401 (Merkur)</li>
+            <li>Kontonr. 1016866</li>
+            <li>Tekst på overførslen: Your email</li>
+        </ul>
+    {% else %}
+        <p>{% trans "You are a member!" %}</p>
+
+        {% trans "next general assembly" as next_general_assembly %}
+        <p>{% trans "Period" %}: {{ current_period.lower|date:"SHORT_DATE_FORMAT" }} to {{ current_period.upper|date:"SHORT_DATE_FORMAT"|default:next_general_assembly }}</p>
+        <p>{% trans "Type" %}: {{ current_membership.membership_type }}</p>
+    {% endif %}
+    </div>
+
+    <div class="content-view">
+        <h2>Profile settings</h2>
+        <form>
+            <div>
+                <label for="username">
+                Username
+                </label>
+                <input id="username" type="text" value="{{user}}" />
+            </div>
+
+            <div>
+                <label for="first_name">
+                First name
+                </label>
+                <input id="first_name" type="text" value="{{user.first_name}}" />
+            </div>
+
+            <div>
+                <label for="last_name">
+                Last name
+                </label>
+                <input id="last_name" type="text" value="{{user.last_name}}" />
+            </div>
+
+            <button>Update Profile</button>
+        </form>
+    </div>
+
+    <div class="view-list">
+        <h2>Email settings</h2>
+        <button>Update Email</button>
+    </div>
+{% endblock %}

src/membership/views.py

@@ -0,0 +1,169 @@
+"""Views for the membership app."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from django.contrib import messages
+from django.contrib.auth.tokens import default_token_generator
+from django.http import HttpResponseForbidden
+from django.shortcuts import get_object_or_404
+from django.shortcuts import redirect
+from django.utils.translation import gettext_lazy as _
+from django_ratelimit.decorators import ratelimit
+from django_view_decorator import namespaced_decorator_factory
+from utils.view_utils import RenderConfig
+from utils.view_utils import RowAction
+from utils.view_utils import render
+
+from .forms import InviteForm
+from .models import Membership
+from .permissions import ADMINISTRATE_MEMBERS
+from .selectors import get_member
+from .selectors import get_members
+from .selectors import get_memberships
+from .selectors import get_subscription_periods
+
+if TYPE_CHECKING:
+    from django.http import HttpRequest
+    from django.http import HttpResponse
+
+member_view = namespaced_decorator_factory(namespace="member", base_path="membership")
+
+
+@member_view(
+    paths="",
+    name="membership-overview",
+    login_required=True,
+)
+def membership_overview(request: HttpRequest) -> HttpResponse:
+    """View to show the membership overview."""
+    memberships = get_memberships(member=request.user)
+    current_membership = memberships.current()
+    previous_memberships = memberships.previous()
+
+    current_period = current_membership.period.period if current_membership else None
+
+    context = {
+        "current_membership": current_membership,
+        "current_period": current_period,
+        "previous_memberships": previous_memberships,
+    }
+
+    return render(
+        request=request,
+        template_name="membership/membership_overview.html",
+        context=context,
+    )
+
+
+admin_members_view = namespaced_decorator_factory(
+    namespace="admin-members",
+    base_path="admin",
+)
+
+
+@admin_members_view(
+    paths="members/",
+    name="list",
+    login_required=True,
+    permissions=[ADMINISTRATE_MEMBERS.path],
+)
+def members_admin(request: HttpRequest) -> HttpResponse:
+    """View to list all members."""
+    users = get_members()
+
+    render_config = RenderConfig(
+        entity_name="member",
+        entity_name_plural="members",
+        paginate_by=20,
+        objects=users,
+        columns=[
+            ("username", _("Username")),
+            ("first_name", _("First name")),
+            ("last_name", _("Last name")),
+            ("email", _("Email")),
+            ("active_membership", _("Active membership")),
+        ],
+        row_actions=[
+            RowAction(
+                label=_("View"),
+                url_name="admin-members:detail",
+                url_kwargs={"member_id": "id"},
+            ),
+        ],
+    )
+
+    return render_config.render_list(
+        request=request,
+    )
+
+
+@admin_members_view(
+    paths="<int:member_id>/",
+    name="detail",
+    login_required=True,
+    permissions=[ADMINISTRATE_MEMBERS.path],
+)
+def members_admin_detail(request: HttpRequest, member_id: int) -> HttpResponse:
+    """View to show the details of a member."""
+    member = get_member(member_id=member_id)
+    subscription_periods = get_subscription_periods(member=member)
+
+    context = {
+        "member": member,
+        "subscription_periods": subscription_periods,
+        "base_path": "admin-members:list",
+    }
+
+    return render(
+        request=request,
+        template_name="membership/members_admin_detail.html",
+        context=context,
+    )
+
+
+@ratelimit(group="membership", key="ip", rate="10/d", method="ALL", block=True)
+@member_view(
+    paths="invite/<str:referral_code>/<str:token>/",
+    name="membership-invite",
+    login_required=False,
+)
+def invite(request: HttpRequest, referral_code: str, token: str) -> HttpResponse:
+    """View to invite a member to create a membership.
+
+    The token belongs to a non-active Member object. If the token is valid,
+    the caller is allowed to create a membership.
+
+    We ratelimit this view so it's not possible to brute-force tokens.
+    """
+    if request.user.is_authenticated:
+        return HttpResponseForbidden("You're already logged in. So you cannot receive an invite.")
+
+    # Firstly, we get the membership by the referral code.
+    membership = get_object_or_404(Membership, referral_code=referral_code, user__is_active=False, revoked=False)
+
+    token_valid = default_token_generator.check_token(membership.user, token)
+
+    if not token_valid:
+        raise HttpResponseForbidden("Token not valid - maybe it expired?")
+
+    if request.method == "POST":
+        form = InviteForm(membership=membership, data=request.POST)
+        if form.is_valid():
+            form.save()
+            messages.info(request, _("Password is set for your account and you can now login."))
+            return redirect("account_login")
+    else:
+        form = InviteForm(membership=membership)
+
+    context = {
+        "token": token,
+        "membership": membership,
+        "form": form,
+    }
+    return render(
+        request=request,
+        template_name="membership/invite.html",
+        context=context,
+    )

src/project/__init__.py

@@ -0,0 +1 @@
+"""data.coop member system."""

src/project/asgi.py

@@ -0,0 +1,7 @@
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings")
+
+application = get_asgi_application()

src/project/locale/da/LC_MESSAGES/django.po

@@ -0,0 +1,519 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: \n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-03-04 09:06+0100\n"
+"PO-Revision-Date: 2021-03-04 09:06+0100\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"Language: da\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 2.4.1\n"
+
+#: src/accounting/admin.py:15 src/accounting/admin.py:26
+msgid "Customer"
+msgstr ""
+
+#: src/accounting/admin.py:31
+msgid "Order ID"
+msgstr ""
+
+#: src/accounting/models.py:13 src/membership/models.py:11
+msgid "modified"
+msgstr ""
+
+#: src/accounting/models.py:14 src/membership/models.py:12
+msgid "created"
+msgstr ""
+
+#: src/accounting/models.py:43
+msgid "amount"
+msgstr ""
+
+#: src/accounting/models.py:46
+msgid "This will include VAT"
+msgstr ""
+
+#: src/accounting/models.py:48 src/accounting/models.py:61
+#: src/accounting/models.py:100
+msgid "description"
+msgstr ""
+
+#: src/accounting/models.py:64
+msgid "price (excl. VAT)"
+msgstr ""
+
+#: src/accounting/models.py:66
+msgid "VAT"
+msgstr ""
+
+#: src/accounting/models.py:68
+msgid "is paid"
+msgstr ""
+
+#: src/accounting/models.py:88
+msgctxt "accounting term"
+msgid "Order"
+msgstr ""
+
+#: src/accounting/models.py:89
+msgctxt "accounting term"
+msgid "Orders"
+msgstr ""
+
+#: src/accounting/models.py:121
+msgid "payment"
+msgstr ""
+
+#: src/accounting/models.py:122
+msgid "payments"
+msgstr ""
+
+#: src/membership/models.py:45
+msgid "membership"
+msgstr "medlemskab"
+
+#: src/membership/models.py:46
+msgid "memberships"
+msgstr "medlemskaber"
+
+#: src/membership/models.py:53
+msgid "subscription type"
+msgstr ""
+
+#: src/membership/models.py:57
+msgid "The duration this subscription is for. "
+msgstr ""
+
+#: src/membership/models.py:70
+msgid "membership type"
+msgstr ""
+
+#: src/membership/models.py:71
+msgid "membership types"
+msgstr ""
+
+#: src/membership/models.py:73
+msgid "name"
+msgstr "navn"
+
+#: src/membership/templates/membership_overview.html:7
+msgid "You do not have an active membership!"
+msgstr "Du har ikke et aktivt medlemskab!"
+
+#: src/membership/templates/membership_overview.html:9
+msgid ""
+"You can become a member by depositing the membership fee to our bank account."
+msgstr ""
+
+#: src/membership/templates/membership_overview.html:17
+msgid "You are a member!"
+msgstr "Du er medlem!"
+
+#: src/membership/templates/membership_overview.html:19
+msgid "Period"
+msgstr "Periode"
+
+#: src/membership/templates/membership_overview.html:20
+msgid "Type"
+msgstr "Type"
+
+#: src/project/settings.py:131
+msgid "Danish"
+msgstr "Dansk"
+
+#: src/project/settings.py:132
+msgid "English"
+msgstr "Engelsk"
+
+#: src/project/templates/account/account_inactive.html:5
+#: src/project/templates/account/account_inactive.html:8
+msgid "Account Inactive"
+msgstr "Inaktiv konto"
+
+#: src/project/templates/account/account_inactive.html:10
+msgid "This account is inactive."
+msgstr "Denne konto er inaktiv."
+
+#: src/project/templates/account/email.html:5
+#: src/project/templates/account/email.html:16
+msgid "E-mail Addresses"
+msgstr "E-mail adresser"
+
+#: src/project/templates/account/email.html:21
+msgid "The following e-mail addresses are associated with your account:"
+msgstr "De følgende e-mail adresser er tilknyttet din konto:"
+
+#: src/project/templates/account/email.html:31
+msgid "Address"
+msgstr "Adresse"
+
+#: src/project/templates/account/email.html:32
+msgid "Status"
+msgstr "Status"
+
+#: src/project/templates/account/email.html:33
+msgid "Primary"
+msgstr "Primær"
+
+#: src/project/templates/account/email.html:90
+msgid "Warning:"
+msgstr "Advarsel:"
+
+#: src/project/templates/account/email.html:91
+msgid ""
+"You currently do not have any e-mail address set up. You should really add "
+"an e-mail address so you can receive notifications, reset your password, etc."
+msgstr ""
+"Du har lige nu ingen e-mail adresse tilknyttet. Du burde virkelig tilføje en "
+"e-mail adresse så du kan modtage notifikationer, nulstille dit kodeord, osv."
+
+#: src/project/templates/account/email.html:99
+#: src/project/templates/account/email.html:107
+msgid "Add E-mail"
+msgstr "Tilføj e-mail"
+
+#: src/project/templates/account/email.html:118
+msgid "Do you really want to remove the selected e-mail address?"
+msgstr "Vil du virkelig fjerne den valgte e-mail?"
+
+#: src/project/templates/account/email/base_message.txt:1
+#, python-format
+msgid "Hello from %(site_name)s!"
+msgstr "Hej fra %(site_name)s!"
+
+#: src/project/templates/account/email/base_message.txt:5
+#, python-format
+msgid ""
+"Thank you for using %(site_name)s!\n"
+"%(site_domain)s"
+msgstr ""
+
+#: src/project/templates/account/email/email_confirmation_message.txt:5
+#, python-format
+msgid ""
+"You're receiving this e-mail because user %(user_display)s has given your e-"
+"mail address to register an account on %(site_domain)s.\n"
+"\n"
+"To confirm this is correct, go to %(activate_url)s"
+msgstr ""
+
+#: src/project/templates/account/email/email_confirmation_subject.txt:3
+msgid "Please Confirm Your E-mail Address"
+msgstr "Venligst bekræft din e-mail adresse"
+
+#: src/project/templates/account/email/password_reset_key_message.txt:4
+msgid ""
+"You're receiving this e-mail because you or someone else has requested a "
+"password for your user account.\n"
+"It can be safely ignored if you did not request a password reset. Click the "
+"link below to reset your password."
+msgstr ""
+"Du modtager denne e-mail fordi du, eller nogen anden, har anmodet om "
+"nulstilling af dit kodeord.\n"
+"Du kan trygt ignorere dette hvis det ikke var dig der anmodede om "
+"nulstillingen. Klik på linket herunder for at nulstille dit kodeord."
+
+#: src/project/templates/account/email/password_reset_key_message.txt:9
+#, python-format
+msgid "In case you forgot, your username is %(username)s."
+msgstr ""
+
+#: src/project/templates/account/email/password_reset_key_subject.txt:3
+msgid "Password Reset E-mail"
+msgstr "Nulstilling af password"
+
+#: src/project/templates/account/email_confirm.html:6
+#: src/project/templates/account/email_confirm.html:10
+msgid "Confirm E-mail Address"
+msgstr "Bekræft e-mail adresse"
+
+#: src/project/templates/account/email_confirm.html:16
+#, python-format
+msgid ""
+"Please confirm that <a href=\"mailto:%(email)s\">%(email)s</a> is an e-mail "
+"address for user %(user_display)s."
+msgstr ""
+
+#: src/project/templates/account/email_confirm.html:20
+msgid "Confirm"
+msgstr "Bekræft"
+
+#: src/project/templates/account/email_confirm.html:27
+#, python-format
+msgid ""
+"This e-mail confirmation link expired or is invalid. Please <a href="
+"\"%(email_url)s\">issue a new e-mail confirmation request</a>."
+msgstr ""
+
+#: src/project/templates/account/login.html:20
+#: src/project/templates/account/login.html:26
+#: src/project/templates/account/signup.html:26
+#: src/project/templates/account/signup.html:32
+msgid "E-mail"
+msgstr "E-mail"
+
+#: src/project/templates/account/login.html:31
+#: src/project/templates/account/login.html:37
+#: src/project/templates/account/signup.html:44
+#: src/project/templates/account/signup.html:50
+msgid "Password"
+msgstr "Kodeord"
+
+#: src/project/templates/account/login.html:41
+msgid "Sign in"
+msgstr "Log ind"
+
+#: src/project/templates/account/login.html:45
+msgid "Forgot password?"
+msgstr "Glemt kodeord?"
+
+#: src/project/templates/account/login.html:48
+msgid "Or"
+msgstr "Eller"
+
+#: src/project/templates/account/login.html:53
+#: src/project/templates/account/signup.html:6
+msgid "Become a member"
+msgstr "Bliv medlem"
+
+#: src/project/templates/account/logout.html:5
+#: src/project/templates/account/logout.html:8
+#: src/project/templates/account/logout.html:17
+msgid "Sign Out"
+msgstr "Log ud"
+
+#: src/project/templates/account/logout.html:10
+msgid "Are you sure you want to sign out?"
+msgstr "Er du sikker på at du vil logge ind?"
+
+#: src/project/templates/account/messages/cannot_delete_primary_email.txt:2
+#, python-format
+msgid "You cannot remove your primary e-mail address (%(email)s)."
+msgstr ""
+
+#: src/project/templates/account/messages/email_confirmation_sent.txt:2
+#, python-format
+msgid "Confirmation e-mail sent to %(email)s."
+msgstr ""
+
+#: src/project/templates/account/messages/email_confirmed.txt:2
+#, python-format
+msgid "You have confirmed %(email)s."
+msgstr ""
+
+#: src/project/templates/account/messages/email_deleted.txt:2
+#, python-format
+msgid "Removed e-mail address %(email)s."
+msgstr ""
+
+#: src/project/templates/account/messages/logged_in.txt:4
+#, python-format
+msgid "Successfully signed in as %(name)s."
+msgstr ""
+
+#: src/project/templates/account/messages/logged_out.txt:2
+msgid "You have signed out."
+msgstr "Du er nu logget ud."
+
+#: src/project/templates/account/messages/password_changed.txt:2
+msgid "Password successfully changed."
+msgstr ""
+
+#: src/project/templates/account/messages/password_set.txt:2
+msgid "Password successfully set."
+msgstr ""
+
+#: src/project/templates/account/messages/primary_email_set.txt:2
+msgid "Primary e-mail address set."
+msgstr ""
+
+#: src/project/templates/account/messages/unverified_primary_email.txt:2
+msgid "Your primary e-mail address must be verified."
+msgstr ""
+
+#: src/project/templates/account/password_change.html:5
+#: src/project/templates/account/password_change.html:8
+#: src/project/templates/account/password_change.html:13
+#: src/project/templates/account/password_reset_from_key.html:4
+#: src/project/templates/account/password_reset_from_key.html:7
+#: src/project/templates/account/password_reset_from_key_done.html:4
+#: src/project/templates/account/password_reset_from_key_done.html:7
+msgid "Change Password"
+msgstr "Skift kodeord"
+
+#: src/project/templates/account/password_change.html:14
+msgid "Forgot Password?"
+msgstr "Glemt kodeord?"
+
+#: src/project/templates/account/password_reset.html:6
+#: src/project/templates/account/password_reset.html:10
+#: src/project/templates/account/password_reset_done.html:6
+#: src/project/templates/account/password_reset_done.html:9
+msgid "Password Reset"
+msgstr ""
+
+#: src/project/templates/account/password_reset.html:16
+msgid ""
+"Forgotten your password? Enter your e-mail address below, and we'll send you "
+"an e-mail allowing you to reset it."
+msgstr ""
+
+#: src/project/templates/account/password_reset.html:21
+#: src/project/templates/account/password_reset.html:27
+msgid "E-mail address"
+msgstr "E-mail adresser"
+
+#: src/project/templates/account/password_reset.html:38
+msgid "Reset My Password"
+msgstr ""
+
+#: src/project/templates/account/password_reset.html:41
+msgid "Please contact us if you have any trouble resetting your password."
+msgstr ""
+
+#: src/project/templates/account/password_reset.html:47
+#: src/project/templates/account/signup.html:72
+msgid "To login"
+msgstr "Til login"
+
+#: src/project/templates/account/password_reset_done.html:15
+msgid ""
+"We have sent you an e-mail. Please contact us if you do not receive it "
+"within a few minutes."
+msgstr ""
+
+#: src/project/templates/account/password_reset_from_key.html:7
+msgid "Bad Token"
+msgstr ""
+
+#: src/project/templates/account/password_reset_from_key.html:11
+#, python-format
+msgid ""
+"The password reset link was invalid, possibly because it has already been "
+"used.  Please request a <a href=\"%(passwd_reset_url)s\">new password reset</"
+"a>."
+msgstr ""
+
+#: src/project/templates/account/password_reset_from_key.html:17
+msgid "change password"
+msgstr ""
+
+#: src/project/templates/account/password_reset_from_key.html:20
+#: src/project/templates/account/password_reset_from_key_done.html:8
+msgid "Your password is now changed."
+msgstr ""
+
+#: src/project/templates/account/password_set.html:5
+#: src/project/templates/account/password_set.html:8
+#: src/project/templates/account/password_set.html:13
+msgid "Set Password"
+msgstr "Sæt kodeord"
+
+#: src/project/templates/account/signup.html:19
+msgid "To become a member, you need to have an account. Create one here."
+msgstr ""
+
+#: src/project/templates/account/signup.html:66
+msgid "Sign up"
+msgstr "Bliv medlem"
+
+#: src/project/templates/account/signup_closed.html:5
+#: src/project/templates/account/signup_closed.html:8
+msgid "Sign Up Closed"
+msgstr ""
+
+#: src/project/templates/account/signup_closed.html:10
+msgid "We are sorry, but the sign up is currently closed."
+msgstr ""
+
+#: src/project/templates/account/snippets/already_logged_in.html:5
+msgid "Note"
+msgstr ""
+
+#: src/project/templates/account/snippets/already_logged_in.html:5
+#, python-format
+msgid "you are already logged in as %(user_display)s."
+msgstr ""
+
+#: src/project/templates/account/verification_sent.html:5
+#: src/project/templates/account/verification_sent.html:8
+#: src/project/templates/account/verified_email_required.html:5
+#: src/project/templates/account/verified_email_required.html:8
+msgid "Verify Your E-mail Address"
+msgstr "Verificér din e-mail adresse"
+
+#: src/project/templates/account/verification_sent.html:10
+msgid ""
+"We have sent an e-mail to you for verification. Follow the link provided to "
+"finalize the signup process. Please contact us if you do not receive it "
+"within a few minutes."
+msgstr ""
+
+#: src/project/templates/account/verified_email_required.html:12
+msgid ""
+"This part of the site requires us to verify that\n"
+"you are who you claim to be. For this purpose, we require that you\n"
+"verify ownership of your e-mail address. "
+msgstr ""
+
+#: src/project/templates/account/verified_email_required.html:16
+msgid ""
+"We have sent an e-mail to you for\n"
+"verification. Please click on the link inside this e-mail. Please\n"
+"contact us if you do not receive it within a few minutes."
+msgstr ""
+
+#: src/project/templates/account/verified_email_required.html:20
+#, python-format
+msgid ""
+"<strong>Note:</strong> you can still <a href=\"%(email_url)s\">change your e-"
+"mail address</a>."
+msgstr ""
+
+#: src/project/templates/base.html:140
+msgid "Dashboard"
+msgstr ""
+
+#: src/project/templates/base.html:146
+msgid "Profile"
+msgstr "Profil"
+
+#: src/project/templates/base.html:152
+msgid "Details"
+msgstr "Detaljer"
+
+#: src/project/templates/base.html:158
+msgid "Emails"
+msgstr "Emails"
+
+#: src/project/templates/base.html:164
+msgid "Membership"
+msgstr "Medlemskab"
+
+#: src/project/templates/base.html:171 src/project/templates/base.html:184
+msgid "Overview"
+msgstr "Oversigt"
+
+#: src/project/templates/base.html:177
+msgid "Services"
+msgstr "Tjenester"
+
+#: src/project/templates/base.html:191
+msgid "Admin"
+msgstr "Admin"
+
+#: src/project/templates/base.html:197
+msgid "Members"
+msgstr "Medlemmer"
+
+#~ msgid "OR"
+#~ msgstr "Eller"

src/project/settings.py

@@ -0,0 +1,200 @@
+"""Settings for the project."""
+
+from pathlib import Path
+
+import django_stubs_ext
+from django.utils.translation import gettext_lazy as _
+from environs import Env
+
+django_stubs_ext.monkeypatch()
+
+env = Env()
+env.read_env()
+
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+PROJECT_DIR = BASE_DIR / "project"
+
+SECRET_KEY = env.str("SECRET_KEY", default="something-very-secret")
+
+DEBUG = env.bool("DEBUG", default=False)
+
+ALLOWED_HOSTS = env.list("ALLOWED_HOSTS", default=["*"])
+CSRF_TRUSTED_ORIGINS = env.list(
+    "CSRF_TRUSTED_ORIGINS",
+    default=["http://localhost:8000"],
+)
+
+ADMINS = [tuple(x.split(":")) for x in env.list("DJANGO_ADMINS", default=[])]
+
+DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
+
+# Application definition
+
+DJANGO_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "django.contrib.sites",
+]
+
+THIRD_PARTY_APPS = [
+    "allauth",
+    "allauth.account",
+    "django_view_decorator",
+]
+
+LOCAL_APPS = [
+    "utils",
+    "accounting",
+    "membership",
+]
+
+INSTALLED_APPS = [
+    *DJANGO_APPS,
+    *THIRD_PARTY_APPS,
+    *LOCAL_APPS,
+]
+
+DATABASES = {"default": env.dj_db_url("DATABASE_URL")}
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "whitenoise.middleware.WhiteNoiseMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+    "allauth.account.middleware.AccountMiddleware",
+]
+
+ROOT_URLCONF = "project.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [PROJECT_DIR / "templates"],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+            "builtins": [
+                "django.templatetags.i18n",
+            ],
+        },
+    },
+]
+
+AUTHENTICATION_BACKENDS = (
+    "django.contrib.auth.backends.ModelBackend",
+    "allauth.account.auth_backends.AuthenticationBackend",
+)
+
+WSGI_APPLICATION = "project.wsgi.application"
+
+
+AUTH_PASSWORD_VALIDATORS = []
+
+LANGUAGE_CODE = "da-dk"
+
+TIME_ZONE = "Europe/Copenhagen"
+
+USE_I18N = True
+
+
+USE_TZ = True
+
+STATIC_URL = "/static/"
+STATICFILES_DIRS = [PROJECT_DIR / "static"]
+STATIC_ROOT = BASE_DIR / "static"
+
+SITE_ID = 1
+
+LOGIN_REDIRECT_URL = "/"
+
+EMAIL_BACKEND = env.str(
+    "EMAIL_BACKEND",
+    default="django.core.mail.backends.console.EmailBackend",
+)
+DEFAULT_FROM_EMAIL = env.str("DEFAULT_FROM_EMAIL", default="")
+SERVER_EMAIL = env.str("SERVER_EMAIL", default=DEFAULT_FROM_EMAIL)
+# Parse email URLs, e.g. "smtp://"
+email = env.dj_email_url("EMAIL_URL", default="smtp://")
+EMAIL_HOST = email["EMAIL_HOST"]
+EMAIL_PORT = email["EMAIL_PORT"]
+EMAIL_HOST_PASSWORD = email["EMAIL_HOST_PASSWORD"]
+EMAIL_HOST_USER = email["EMAIL_HOST_USER"]
+EMAIL_USE_TLS = email["EMAIL_USE_TLS"]
+
+# Always show DDT in development for any IP, not just 127.0.0.1 or
+# settings.INTERNAL_IPS. This is useful in a docker setup where the
+# requesting IP isn't static.
+DEBUG_TOOLBAR_CONFIG = {
+    "SHOW_TOOLBAR_CALLBACK": lambda _x: DEBUG,
+}
+
+CURRENCIES = ("DKK",)
+CURRENCY_CHOICES = [("DKK", "DKK")]
+
+LANGUAGES = [
+    ("da", _("Danish")),
+    ("en", _("English")),
+]
+
+# We store all translations in one location
+LOCALE_PATHS = [PROJECT_DIR / "locale"]
+
+# Allauth configuration
+ACCOUNT_AUTHENTICATION_METHOD = "email"
+ACCOUNT_EMAIL_REQUIRED = True
+ACCOUNT_SIGNUP_PASSWORD_ENTER_TWICE = False
+ACCOUNT_USERNAME_REQUIRED = False
+
+# Logging
+# We want to log everything to stdout in docker
+LOGGING = {
+    "version": 1,
+    "disable_existing_loggers": False,
+    "handlers": {
+        "console": {
+            "level": "DEBUG",
+            "class": "logging.StreamHandler",
+        },
+    },
+    "loggers": {
+        "": {
+            "handlers": ["console"],
+            "level": "DEBUG",
+        },
+    },
+}
+
+STRIPE_API_KEY = env.str("STRIPE_API_KEY")
+STRIPE_ENDPOINT_SECRET = env.str("STRIPE_ENDPOINT_SECRET")
+
+# The number of seconds a password reset link is valid for (default: 3 days).
+# We've extended this to 7 days because invites then last for 1 week.
+PASSWORD_RESET_TIMEOUT = 60 * 60 * 24 * 7
+
+if DEBUG:
+    INSTALLED_APPS += ["debug_toolbar", "django_browser_reload"]
+    MIDDLEWARE += [
+        "debug_toolbar.middleware.DebugToolbarMiddleware",
+        "django_browser_reload.middleware.BrowserReloadMiddleware",
+    ]
+    # Always show DDT in development for any IP, not just 127.0.0.1 or
+    # settings.INTERNAL_IPS. This is useful in a docker setup where the
+    # requesting IP isn't static.
+    DEBUG_TOOLBAR_CONFIG = {
+        "SHOW_TOOLBAR_CALLBACK": lambda _x: DEBUG,
+    }