659 lines
20 KiB
Python
659 lines
20 KiB
Python
import logging
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from django.conf import settings
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from django.db import models
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from django.db.models.aggregates import Sum
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from django.contrib import messages
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from django.contrib.postgres.fields import DateTimeRangeField, JSONField
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from django.utils.text import slugify
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from django.utils.translation import ugettext_lazy as _
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from django.utils import timezone
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from django.urls import reverse_lazy
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from django.core.exceptions import ValidationError
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from decimal import Decimal
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from datetime import timedelta
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from unidecode import unidecode
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from django.utils.dateparse import parse_datetime
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from utils.models import UUIDModel, CreatedUpdatedModel
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from .managers import ProductQuerySet, OrderQuerySet
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logger = logging.getLogger("bornhack.%s" % __name__)
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class CustomOrder(CreatedUpdatedModel):
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text = models.TextField(help_text=_("The invoice text"))
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customer = models.TextField(help_text=_("The customer info for this order"))
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amount = models.IntegerField(
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help_text=_("Amount of this custom order (in DKK, including VAT).")
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)
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paid = models.BooleanField(
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verbose_name=_("Paid?"),
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help_text=_(
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"Check when this custom order has been paid (or if it gets cancelled out by a Credit Note)"
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),
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default=False,
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)
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danish_vat = models.BooleanField(help_text="Danish VAT?", default=True)
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def __str__(self):
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return "custom order id #%s" % self.pk
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@property
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def vat(self):
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if self.danish_vat:
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return Decimal(round(self.amount * Decimal(0.2), 2))
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else:
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return 0
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class Order(CreatedUpdatedModel):
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class Meta:
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unique_together = ("user", "open")
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ordering = ["-created"]
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products = models.ManyToManyField(
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"shop.Product", through="shop.OrderProductRelation"
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)
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user = models.ForeignKey(
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"auth.User",
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verbose_name=_("User"),
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help_text=_("The user this shop order belongs to."),
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related_name="orders",
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on_delete=models.PROTECT,
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)
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paid = models.BooleanField(
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verbose_name=_("Paid?"),
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help_text=_("Whether this shop order has been paid."),
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default=False,
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)
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# We are using a NullBooleanField here to ensure that we only have one open order per user at a time.
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# This "hack" is possible since postgres treats null values as different, and thus we have database level integrity.
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open = models.NullBooleanField(
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verbose_name=_("Open?"),
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help_text=_('Whether this shop order is open or not. "None" means closed.'),
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default=True,
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)
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CREDIT_CARD = "credit_card"
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BLOCKCHAIN = "blockchain"
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BANK_TRANSFER = "bank_transfer"
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CASH = "cash"
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PAYMENT_METHODS = [CREDIT_CARD, BLOCKCHAIN, BANK_TRANSFER, CASH]
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PAYMENT_METHOD_CHOICES = [
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(CREDIT_CARD, "Credit card"),
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(BLOCKCHAIN, "Blockchain"),
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(BANK_TRANSFER, "Bank transfer"),
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(CASH, "Cash"),
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]
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payment_method = models.CharField(
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max_length=50, choices=PAYMENT_METHOD_CHOICES, default="", blank=True
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)
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cancelled = models.BooleanField(default=False)
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refunded = models.BooleanField(
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verbose_name=_("Refunded?"),
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help_text=_("Whether this order has been refunded."),
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default=False,
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)
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customer_comment = models.TextField(
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verbose_name=_("Customer comment"),
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help_text=_("If you have any comments about the order please enter them here."),
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default="",
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blank=True,
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)
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invoice_address = models.TextField(
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help_text=_(
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"The invoice address for this order. Leave blank to use the email associated with the logged in user."
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),
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blank=True,
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)
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notes = models.TextField(
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help_text="Any internal notes about this order can be entered here. They will not be printed on the invoice or shown to the customer in any way.",
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default="",
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blank=True,
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)
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pdf = models.FileField(null=True, blank=True, upload_to="proforma_invoices/")
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objects = OrderQuerySet.as_manager()
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def __str__(self):
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return "shop order id #%s" % self.pk
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def get_number_of_items(self):
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return self.products.aggregate(sum=Sum("orderproductrelation__quantity"))["sum"]
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@property
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def vat(self):
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return Decimal(self.total * Decimal(0.2))
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@property
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def total(self):
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if self.products.all():
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return Decimal(
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self.products.aggregate(
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sum=Sum(
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models.F("orderproductrelation__product__price")
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* models.F("orderproductrelation__quantity"),
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output_field=models.IntegerField(),
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)
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)["sum"]
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)
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else:
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return False
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def get_coinify_callback_url(self, request):
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""" Check settings for an alternative COINIFY_CALLBACK_HOSTNAME otherwise use the one from the request """
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if (
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hasattr(settings, "COINIFY_CALLBACK_HOSTNAME")
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and settings.COINIFY_CALLBACK_HOSTNAME
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):
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host = settings.COINIFY_CALLBACK_HOSTNAME
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else:
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host = request.get_host()
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return (
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"https://"
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+ host
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+ str(reverse_lazy("shop:coinify_callback", kwargs={"pk": self.pk}))
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)
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def get_coinify_thanks_url(self, request):
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return (
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"https://"
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+ request.get_host()
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+ str(reverse_lazy("shop:coinify_thanks", kwargs={"pk": self.pk}))
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)
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def get_epay_accept_url(self, request):
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return (
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"https://"
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+ request.get_host()
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+ str(reverse_lazy("shop:epay_thanks", kwargs={"pk": self.pk}))
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)
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def get_cancel_url(self, request):
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return (
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"https://"
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+ request.get_host()
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+ str(reverse_lazy("shop:order_detail", kwargs={"pk": self.pk}))
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)
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def get_epay_callback_url(self, request):
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return (
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"https://"
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+ request.get_host()
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+ str(reverse_lazy("shop:epay_callback", kwargs={"pk": self.pk}))
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)
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@property
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def description(self):
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return "Order #%s" % self.pk
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def get_absolute_url(self):
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return str(reverse_lazy("shop:order_detail", kwargs={"pk": self.pk}))
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def create_tickets(self, request=None):
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for order_product in self.orderproductrelation_set.all():
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# if this is a Ticket product?
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if order_product.product.ticket_type:
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query_kwargs = dict(
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product=order_product.product,
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ticket_type=order_product.product.ticket_type,
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)
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already_created_tickets = self.shoptickets.filter(
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**query_kwargs
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).count()
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tickets_to_create = max(
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0, order_product.quantity - already_created_tickets
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)
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# create the number of tickets required
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if tickets_to_create > 0:
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for _ in range(
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0, (order_product.quantity - already_created_tickets)
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):
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self.shoptickets.create(**query_kwargs)
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msg = "Created %s tickets of type: %s" % (
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order_product.quantity,
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order_product.product.ticket_type.name,
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)
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if request:
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messages.success(request, msg)
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else:
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print(msg)
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# and mark the OPR as ticket_generated=True
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order_product.ticket_generated = True
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order_product.save()
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def mark_as_paid(self, request=None):
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self.paid = True
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self.open = None
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self.create_tickets(request)
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self.save()
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def mark_as_refunded(self, request=None):
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if not self.paid:
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msg = "Order %s is not paid, so cannot mark it as refunded!" % self.pk
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if request:
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messages.error(request, msg)
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else:
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print(msg)
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else:
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self.refunded = True
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# delete any tickets related to this order
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if self.shoptickets.all():
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msg = "Order %s marked as refunded, deleting %s tickets..." % (
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self.pk,
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self.shoptickets.count(),
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)
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if request:
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messages.success(request, msg)
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else:
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print(msg)
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self.shoptickets.all().delete()
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else:
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msg = "Order %s marked as refunded, no tickets to delete" % self.pk
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if request:
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messages.success(request, msg)
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else:
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print(msg)
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self.save()
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def mark_as_cancelled(self, request=None):
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if self.paid:
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msg = "Order %s is paid, cannot cancel a paid order!" % self.pk
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if request:
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messages.error(request, msg)
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else:
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print(msg)
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else:
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self.cancelled = True
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self.open = None
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self.save()
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def is_not_ticket_generated(self):
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if self.orderproductrelation_set.filter(tic=True).count() == 0:
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return True
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else:
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return False
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def is_partially_ticket_generated(self):
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if (
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self.orderproductrelation_set.filter(ticket_generated=True).count() != 0
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and self.orderproductrelation_set.filter(ticket_generated=False).count()
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!= 0
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):
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# some products are handed out, others are not
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return True
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else:
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return False
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def is_fully_ticket_generated(self):
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if self.orderproductrelation_set.filter(ticket_generated=False).count() == 0:
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return True
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else:
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return False
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@property
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def ticket_generated_status(self):
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if self.is_not_ticket_generated():
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return "no"
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elif self.is_partially_ticket_generated():
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return "partially"
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elif self.is_fully_ticket_generated():
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return "fully"
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else:
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return False
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@property
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def coinifyapiinvoice(self):
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if not self.coinify_api_invoices.exists():
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return False
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for tempinvoice in self.coinify_api_invoices.all():
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# we already have a coinifyinvoice for this order, check if it expired
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if not tempinvoice.expired:
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# this invoice is not expired, we are good to go
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return tempinvoice
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# nope
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return False
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@property
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def filename(self):
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return "bornhack_proforma_invoice_order_%s.pdf" % self.pk
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class ProductCategory(CreatedUpdatedModel, UUIDModel):
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class Meta:
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verbose_name = "Product category"
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verbose_name_plural = "Product categories"
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name = models.CharField(max_length=150)
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slug = models.SlugField()
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public = models.BooleanField(default=True)
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def __str__(self):
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return self.name
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def save(self, **kwargs):
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self.slug = slugify(self.name)
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super(ProductCategory, self).save(**kwargs)
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class Product(CreatedUpdatedModel, UUIDModel):
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class Meta:
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verbose_name = "Product"
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verbose_name_plural = "Products"
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ordering = ["available_in", "price", "name"]
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category = models.ForeignKey(
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"shop.ProductCategory", related_name="products", on_delete=models.PROTECT
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)
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name = models.CharField(max_length=150)
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slug = models.SlugField(unique=True, max_length=100)
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price = models.IntegerField(
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help_text=_("Price of the product (in DKK, including VAT).")
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)
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description = models.TextField()
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available_in = DateTimeRangeField(
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help_text=_(
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"Which period is this product available for purchase? | "
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"(Format: YYYY-MM-DD HH:MM) | Only one of start/end is required"
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)
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)
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ticket_type = models.ForeignKey(
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"tickets.TicketType", on_delete=models.PROTECT, null=True, blank=True
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)
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stock_amount = models.IntegerField(
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help_text=(
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"Initial amount available in stock if there is a limited "
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"supply, e.g. fridge space"
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),
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null=True,
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blank=True,
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)
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objects = ProductQuerySet.as_manager()
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def __str__(self):
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return "{} ({} DKK)".format(self.name, self.price)
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def clean(self):
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if self.category.name == "Tickets" and not self.ticket_type:
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raise ValidationError("Products with category Tickets need a ticket_type")
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def is_available(self):
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""" Is the product available or not?
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Checks for the following:
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- Whether now is in the self.available_in
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- If a stock is defined, that there are items left
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"""
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predicates = [self.is_time_available]
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if self.stock_amount:
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predicates.append(self.is_stock_available)
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return all(predicates)
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@property
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def is_time_available(self):
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now = timezone.now()
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time_available = now in self.available_in
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return time_available
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def is_old(self):
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now = timezone.now()
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if hasattr(self.available_in, "upper") and self.available_in.upper:
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return self.available_in.upper < now
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return False
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def is_upcoming(self):
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now = timezone.now()
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return self.available_in.lower > now
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@property
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def left_in_stock(self):
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if self.stock_amount:
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# All orders that are not open and not cancelled count towards what has
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# been "reserved" from stock.
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#
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# This means that an order has either been paid (by card or blockchain)
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# or is marked to be paid with cash or bank transfer, meaning it is a
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# "reservation" of the product in question.
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sold = OrderProductRelation.objects.filter(
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product=self, order__open=None, order__cancelled=False
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).aggregate(Sum("quantity"))["quantity__sum"]
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total_left = self.stock_amount - (sold or 0)
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return total_left
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return None
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@property
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def is_stock_available(self):
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if self.stock_amount:
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stock_available = self.left_in_stock > 0
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return stock_available
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# If there is no stock defined the product is generally available.
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return True
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class OrderProductRelation(CreatedUpdatedModel):
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order = models.ForeignKey("shop.Order", on_delete=models.PROTECT)
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product = models.ForeignKey("shop.Product", on_delete=models.PROTECT)
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quantity = models.PositiveIntegerField()
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ticket_generated = models.BooleanField(default=False)
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@property
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def total(self):
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return Decimal(self.product.price * self.quantity)
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def clean(self):
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if self.ticket_generated and not self.order.paid:
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raise ValidationError(
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"Product can not be handed out when order is not paid."
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)
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class EpayCallback(CreatedUpdatedModel, UUIDModel):
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class Meta:
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verbose_name = "Epay Callback"
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verbose_name_plural = "Epay Callbacks"
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ordering = ["-created"]
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payload = JSONField()
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md5valid = models.BooleanField(default=False)
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def __str__(self):
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return "callback at %s (md5 valid: %s)" % (self.created, self.md5valid)
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class EpayPayment(CreatedUpdatedModel, UUIDModel):
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class Meta:
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verbose_name = "Epay Payment"
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verbose_name_plural = "Epay Payments"
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order = models.OneToOneField("shop.Order", on_delete=models.PROTECT)
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callback = models.ForeignKey("shop.EpayCallback", on_delete=models.PROTECT)
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txnid = models.IntegerField()
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class CreditNote(CreatedUpdatedModel):
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class Meta:
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ordering = ["-created"]
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amount = models.DecimalField(max_digits=10, decimal_places=2)
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text = models.TextField(help_text="Description of what this credit note covers")
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pdf = models.FileField(null=True, blank=True, upload_to="creditnotes/")
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user = models.ForeignKey(
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"auth.User",
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verbose_name=_("User"),
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help_text=_("The user this credit note belongs to, if any."),
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related_name="creditnotes",
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on_delete=models.PROTECT,
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null=True,
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blank=True,
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)
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customer = models.TextField(
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help_text="Customer info if no user is selected", blank=True, default=""
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)
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danish_vat = models.BooleanField(help_text="Danish VAT?", default=True)
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paid = models.BooleanField(
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verbose_name=_("Paid?"),
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help_text=_(
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"Whether the amount in this creditnote has been paid back to the customer."
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),
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default=False,
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)
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sent_to_customer = models.BooleanField(default=False)
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def clean(self):
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errors = []
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if self.user and self.customer:
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msg = "Customer info should be blank if a user is selected."
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errors.append(ValidationError({"user", msg}))
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errors.append(ValidationError({"customer", msg}))
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if not self.user and not self.customer:
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msg = "Either pick a user or fill in Customer info"
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errors.append(ValidationError({"user", msg}))
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errors.append(ValidationError({"customer", msg}))
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if errors:
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raise ValidationError(errors)
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def __str__(self):
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if self.user:
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|
return "creditnoote#%s - %s DKK (customer: user %s)" % (
|
|
self.id,
|
|
self.amount,
|
|
self.user.email,
|
|
)
|
|
else:
|
|
return "creditnoote#%s - %s DKK (customer: %s)" % (
|
|
self.id,
|
|
self.amount,
|
|
self.customer,
|
|
)
|
|
|
|
@property
|
|
def vat(self):
|
|
if self.danish_vat:
|
|
return Decimal(round(self.amount * Decimal(0.2), 2))
|
|
else:
|
|
return 0
|
|
|
|
@property
|
|
def filename(self):
|
|
return "bornhack_creditnote_%s.pdf" % self.pk
|
|
|
|
|
|
class Invoice(CreatedUpdatedModel):
|
|
order = models.OneToOneField(
|
|
"shop.Order", null=True, blank=True, on_delete=models.PROTECT
|
|
)
|
|
customorder = models.OneToOneField(
|
|
"shop.CustomOrder", null=True, blank=True, on_delete=models.PROTECT
|
|
)
|
|
pdf = models.FileField(null=True, blank=True, upload_to="invoices/")
|
|
sent_to_customer = models.BooleanField(default=False)
|
|
|
|
def __str__(self):
|
|
if self.order:
|
|
return "invoice#%s - shop order %s - %s - total %s DKK (sent to %s: %s)" % (
|
|
self.id,
|
|
self.order.id,
|
|
self.order.created,
|
|
self.order.total,
|
|
self.order.user.email,
|
|
self.sent_to_customer,
|
|
)
|
|
elif self.customorder:
|
|
return (
|
|
"invoice#%s - custom order %s - %s - amount %s DKK (customer: %s)"
|
|
% (
|
|
self.id,
|
|
self.customorder.id,
|
|
self.customorder.created,
|
|
self.customorder.amount,
|
|
unidecode(self.customorder.customer),
|
|
)
|
|
)
|
|
|
|
@property
|
|
def filename(self):
|
|
return "bornhack_invoice_%s.pdf" % self.pk
|
|
|
|
def regretdate(self):
|
|
return self.created + timedelta(days=15)
|
|
|
|
|
|
class CoinifyAPIInvoice(CreatedUpdatedModel):
|
|
coinify_id = models.IntegerField(null=True)
|
|
invoicejson = JSONField()
|
|
order = models.ForeignKey(
|
|
"shop.Order", related_name="coinify_api_invoices", on_delete=models.PROTECT
|
|
)
|
|
|
|
def __str__(self):
|
|
return "coinifyinvoice for order #%s" % self.order.id
|
|
|
|
@property
|
|
def expired(self):
|
|
return parse_datetime(self.invoicejson["expire_time"]) < timezone.now()
|
|
|
|
|
|
class CoinifyAPICallback(CreatedUpdatedModel):
|
|
headers = JSONField()
|
|
payload = JSONField(blank=True)
|
|
body = models.TextField(default="")
|
|
order = models.ForeignKey(
|
|
"shop.Order", related_name="coinify_api_callbacks", on_delete=models.PROTECT
|
|
)
|
|
authenticated = models.BooleanField(default=False)
|
|
|
|
def __str__(self):
|
|
return "order #%s callback at %s" % (self.order.id, self.created)
|
|
|
|
|
|
class CoinifyAPIRequest(CreatedUpdatedModel):
|
|
order = models.ForeignKey(
|
|
"shop.Order", related_name="coinify_api_requests", on_delete=models.PROTECT
|
|
)
|
|
method = models.CharField(max_length=100)
|
|
payload = JSONField()
|
|
response = JSONField()
|
|
|
|
def __str__(self):
|
|
return "order %s api request %s" % (self.order.id, self.method)
|