Add the start for administration of memberships.

Makefile

@@ -45,7 +45,7 @@ poetry_lock:
 poetry_command:
 	${DOCKER_RUN} ${DOCKER_CONTAINER_NAME} poetry ${COMMAND}
 
-build_docker_image:
+build_dev_docker_image: compile_requirements_dev
 	${DOCKER_COMPOSE} build ${DOCKER_CONTAINER_NAME}
 
 compile_requirements:

requirements/base.in

@@ -5,3 +5,4 @@ psycopg2-binary==2.9.5
 environs[django]==9.3
 uvicorn==0.13
 whitenoise==5.2
+django-zen-queries==2.1.0

requirements/base.txt

@@ -1,6 +1,6 @@
 #
-# This file is autogenerated by pip-compile with python 3.10
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.10
+# by the following command:
 #
 #    pip-compile --output-file=requirements/base.txt requirements/base.in
 #
@@ -22,18 +22,21 @@ dj-database-url==1.0.0
     # via environs
 dj-email-url==1.0.6
     # via environs
-django==4.1
+django==4.1.5
     # via
     #   -r requirements/base.in
     #   dj-database-url
     #   django-allauth
     #   django-money
+    #   django-zen-queries
 django-allauth==0.46
     # via -r requirements/base.in
 django-cache-url==3.4.2
     # via environs
 django-money==1.3
     # via -r requirements/base.in
+django-zen-queries==2.1.0
+    # via -r requirements/base.in
 environs[django]==9.3
     # via -r requirements/base.in
 h11==0.14.0

requirements/dev.txt

@@ -1,6 +1,6 @@
 #
-# This file is autogenerated by pip-compile with python 3.10
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.10
+# by the following command:
 #
 #    pip-compile --output-file=requirements/dev.txt requirements/dev.in
 #
@@ -48,7 +48,7 @@ dj-email-url==1.0.6
     # via
     #   -r requirements/test.txt
     #   environs
-django==4.1
+django==4.1.5
     # via
     #   -r requirements/test.txt
     #   dj-database-url
@@ -59,6 +59,7 @@ django==4.1
     #   django-money
     #   django-stubs
     #   django-stubs-ext
+    #   django-zen-queries
 django-allauth==0.46
     # via -r requirements/test.txt
 django-browser-reload==1.6.0
@@ -77,6 +78,8 @@ django-stubs==1.12.0
     # via -r requirements/dev.in
 django-stubs-ext==0.7.0
     # via django-stubs
+django-zen-queries==2.1.0
+    # via -r requirements/test.txt
 environs[django]==9.3
     # via -r requirements/test.txt
 executing==1.2.0

requirements/test.txt

@@ -1,6 +1,6 @@
 #
-# This file is autogenerated by pip-compile with python 3.10
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.10
+# by the following command:
 #
 #    pip-compile --output-file=requirements/test.txt requirements/test.in
 #
@@ -42,12 +42,13 @@ dj-email-url==1.0.6
     # via
     #   -r requirements/base.txt
     #   environs
-django==4.1
+django==4.1.5
     # via
     #   -r requirements/base.txt
     #   dj-database-url
     #   django-allauth
     #   django-money
+    #   django-zen-queries
 django-allauth==0.46
     # via -r requirements/base.txt
 django-cache-url==3.4.2
@@ -56,6 +57,8 @@ django-cache-url==3.4.2
     #   environs
 django-money==1.3
     # via -r requirements/base.txt
+django-zen-queries==2.1.0
+    # via -r requirements/base.txt
 environs[django]==9.3
     # via -r requirements/base.txt
 h11==0.14.0

src/membership/apps.py

@@ -1,5 +1,11 @@
 from django.apps import AppConfig
+from django.db.models.signals import post_migrate
 
 
 class MembershipConfig(AppConfig):
     name = "membership"
+
+    def ready(self):
+        from .permissions import persist_permissions
+
+        post_migrate.connect(persist_permissions, sender=self)

src/membership/models.py

@@ -1,5 +1,3 @@
-from typing import Optional
-
 from django.contrib.postgres.constraints import ExclusionConstraint
 from django.contrib.postgres.fields import DateRangeField
 from django.contrib.postgres.fields import RangeOperators
@@ -27,6 +25,11 @@ class SubscriptionPeriod(CreatedModifiedAbstract):
             ),
         ]
 
+    def __str__(self):
+        return (
+            f"{self.period.lower} - {self.period.upper or _('next general assembly')}"
+        )
+
 
 class Membership(CreatedModifiedAbstract):
     """
@@ -40,17 +43,17 @@ class Membership(CreatedModifiedAbstract):
         def _current(self):
             return self.filter(period__period__contains=timezone.now())
 
-        def current(self) -> Optional["Membership"]:
+        def current(self) -> "Membership | None":
             try:
                 return self._current().get()
             except self.model.DoesNotExist:
                 return None
 
-        def previous(self):
+        def previous(self) -> list["Membership"]:
             # A naïve way to get previous by just excluding the current. This
             # means that there must be some protection against "future"
             # memberships.
-            return self.all().difference(self._current())
+            return list(self.all().difference(self._current()))
 
     objects = QuerySet.as_manager()
 

src/membership/permissions.py

@@ -0,0 +1,46 @@
+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(sender, **kwargs):
+    for permission in PERMISSIONS:
+        permission.persist_permission()
+
+
+@dataclass
+class Permission:
+    name: str
+    codename: str
+    app_label: str
+    model: str
+
+    def __post_init__(self, *args, **kwargs):
+        PERMISSIONS.append(self)
+
+    @property
+    def path(self):
+        return f"{self.app_label}.{self.codename}"
+
+    def persist_permission(self):
+
+        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_MEMBERSHIPS = Permission(
+    name=_("Can administrate memberships"),
+    codename="administrate_memberships",
+    app_label="membership",
+    model="membership",
+)

src/membership/selectors.py

@@ -0,0 +1,26 @@
+from django.contrib.auth.models import User
+
+from membership.models import Membership
+from membership.models import SubscriptionPeriod
+
+
+def get_subscription_periods() -> list[SubscriptionPeriod]:
+    subscription_periods = SubscriptionPeriod.objects.prefetch_related(
+        "membership_set",
+        "membership_set__user",
+    ).all()
+    return list(subscription_periods)
+
+
+def get_memberships(
+    *, user: User | None = None, period: SubscriptionPeriod | None = None
+) -> Membership.QuerySet:
+    memberships = Membership.objects.select_related("membership_type").all()
+
+    if user:
+        memberships = memberships.for_user(user)
+
+    if period:
+        memberships = memberships.filter(period=period)
+
+    return memberships

src/membership/templates/membership/membership_admin.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+{% load i18n %}
+
+{% block content %}
+
+    {% for period in subscription_periods %}
+        <h3>{{ period }}</h3>
+        {% for membership in period.membership_set.all %}
+            <p>{{ membership.user.username }}</p>
+        {% endfor %}
+    {% endfor %}
+
+{% endblock %}

src/membership/views.py

@@ -1,18 +1,22 @@
 from django.contrib.auth.decorators import login_required
-from django.shortcuts import render
+from django.contrib.auth.decorators import permission_required
+from zen_queries import render
 
-from .models import Membership
+from .permissions import ADMINISTRATE_MEMBERSHIPS
+from .selectors import get_memberships
+from .selectors import get_subscription_periods
+from utils.view_utils import base_view_context
 
 
 @login_required
 def membership_overview(request):
-    memberships = Membership.objects.for_user(request.user)
+    memberships = get_memberships(user=request.user)
     current_membership = memberships.current()
     previous_memberships = memberships.previous()
 
     current_period = current_membership.period.period if current_membership else None
 
-    context = {
+    context = base_view_context(request) | {
         "current_membership": current_membership,
         "current_period": current_period,
         "previous_memberships": previous_memberships,
@@ -20,6 +24,22 @@ def membership_overview(request):
 
     return render(
         request=request,
-        template_name="membership_overview.html",
+        template_name="membership/membership_overview.html",
+        context=context,
+    )
+
+
+@login_required
+@permission_required(ADMINISTRATE_MEMBERSHIPS.path)
+def membership_admin(request):
+    subscription_periods = get_subscription_periods()
+
+    context = base_view_context(request) | {
+        "subscription_periods": subscription_periods,
+    }
+
+    return render(
+        request=request,
+        template_name="membership/membership_admin.html",
         context=context,
     )

src/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)}

src/project/settings.py

@@ -68,7 +68,6 @@ TEMPLATES = [
                 "django.template.context_processors.request",
                 "django.contrib.auth.context_processors.auth",
                 "django.contrib.messages.context_processors.messages",
-                "project.context_processors.current_site",
             ]
         },
     }

src/project/templates/base.html

@@ -187,13 +187,13 @@
                     </li>
                 </ul>
 
-                {% if user.is_staff %}
+                {% if perms.membership.administrate_memberships %}
                     <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
                         <span>{% trans "Admin" %}</span>
                     </h6>
                     <ul class="nav flex-column mb-2">
-                        <li class="nav-item">
-                            <a class="nav-link" href="#">
+                        <li class="nav-item {% active_path "membership-admin" "active" %}">
+                            <a class="nav-link" href="{% url "membership-admin" %}">
                                 <span data-feather="file-text"></span>
                                 {% trans "Members" %}
                             </a>

src/project/urls.py

@@ -7,12 +7,14 @@ from django.urls import path
 
 from .views import index
 from .views import services_overview
+from membership.views import membership_admin
 from membership.views import membership_overview
 
 urlpatterns = [
     path("", login_required(index), name="index"),
     path("services/", login_required(services_overview), name="services-overview"),
     path("membership/", membership_overview, name="membership-overview"),
+    path("membership/admin/", membership_admin, name="membership-admin"),
     path("accounts/", include("allauth.urls")),
     path("admin/", admin.site.urls),
 ]

src/utils/view_utils.py

@@ -0,0 +1,6 @@
+from django.contrib.sites.shortcuts import get_current_site as django_get_current_site
+
+
+def base_view_context(request):
+    """Include the current site in the context."""
+    return {"site": django_get_current_site(request)}