# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
+from datetime import date, datetime
from django.core.urlresolvers import reverse
from django.db import models
from django.utils.translation import ugettext_lazy as _, ugettext as __
-from datetime import date, datetime
+import getpaid
+from catalogue.models import Book
class Offer(models.Model):
+ """ A fundraiser for a particular book. """
author = models.CharField(_('author'), max_length=255)
title = models.CharField(_('title'), max_length=255)
slug = models.SlugField(_('slug'))
- book_url = models.URLField(_('book URL'), blank=True)
+ book = models.ForeignKey(Book, null=True, blank=True,
+ help_text=_('Published book.'))
redakcja_url = models.URLField(_('redakcja URL'), blank=True)
target = models.DecimalField(_('target'), decimal_places=2, max_digits=10)
start = models.DateField(_('start'))
end = models.DateField(_('end'))
+ due = models.DateField(_('due'),
+ help_text=_('When will it be published if the money is raised.'))
class Meta:
verbose_name = _('offer')
def get_absolute_url(self):
return reverse('funding_offer', args=[self.slug])
+ def is_current(self):
+ return self.start <= date.today() <= self.end
+
@classmethod
def current(cls):
+ """ Returns current fundraiser or None. """
today = date.today()
objects = cls.objects.filter(start__lte=today, end__gte=today)
try:
@classmethod
def public(cls):
+ """ QuerySet for all current and past fundraisers. """
today = date.today()
return cls.objects.filter(start__lte=today)
def get_perks(self, amount=None):
+ """ Finds all the perks for the offer.
+
+ If amount is provided, returns the perks you get for it.
+
+ """
perks = Perk.objects.filter(
models.Q(offer=self) | models.Q(offer=None)
- )
+ ).exclude(end_date__lt=date.today())
if amount is not None:
perks = perks.filter(price__lte=amount)
return perks
- def fund(self, name, email, amount):
- funding = self.funding_set.create(
- name=name, email=email, amount=amount,
- payed_at=datetime.now())
- funding.perks = self.get_perks(amount)
- return funding
+ def funding_payed(self):
+ """ QuerySet for all completed payments for the offer. """
+ return Funding.payed().filter(offer=self)
def sum(self):
- return self.funding_set.aggregate(s=models.Sum('amount'))['s'] or 0
+ """ The money gathered. """
+ return self.funding_payed().aggregate(s=models.Sum('amount'))['s'] or 0
def state(self):
if self.sum() >= self.target:
class Perk(models.Model):
+ """ A perk offer.
+
+ If no attached to a particular Offer, applies to all.
+
+ """
offer = models.ForeignKey(Offer, verbose_name=_('offer'), null=True, blank=True)
price = models.DecimalField(_('price'), decimal_places=2, max_digits=10)
name = models.CharField(_('name'), max_length=255)
description = models.TextField(_('description'), blank=True)
+ end_date = models.DateField(_('end date'), null=True, blank=True)
class Meta:
verbose_name = _('perk')
class Funding(models.Model):
+ """ A person paying in a fundraiser.
+
+ The payment was completed if and only if payed_at is set.
+
+ """
offer = models.ForeignKey(Offer, verbose_name=_('offer'))
- name = models.CharField(_('name'), max_length=127)
- email = models.EmailField(_('email'))
+ name = models.CharField(_('name'), max_length=127, blank=True)
+ email = models.EmailField(_('email'), blank=True)
amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
- payed_at = models.DateTimeField(_('payed_at'))
+ payed_at = models.DateTimeField(_('payed at'), null=True, blank=True)
perks = models.ManyToManyField(Perk, verbose_name=_('perks'), blank=True)
+ # Any additional info needed for perks?
+
+ @classmethod
+ def payed(cls):
+ """ QuerySet for all completed payments. """
+ return cls.objects.exclude(payed_at=None)
+
class Meta:
verbose_name = _('funding')
verbose_name_plural = _('fundings')
ordering = ['-payed_at']
def __unicode__(self):
- return "%s payed %s for %s" % (self.name, self.amount, self.offer)
+ return unicode(self.offer)
+
+ def get_absolute_url(self):
+ return reverse('funding_funding', args=[self.pk])
+
+# Register the Funding model with django-getpaid for payments.
+getpaid.register_to_payment(Funding, unique=False, related_name='payment')
+
+
+class Spent(models.Model):
+ """ Some of the remaining money spent on a book. """
+ book = models.ForeignKey(Book)
+ amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
+ timestamp = models.DateField(_('when'))
+
+ class Meta:
+ verbose_name = _('money spent on a book')
+ verbose_name_plural = _('money spent on books')
+ ordering = ['-timestamp']
+
+ def __unicode__(self):
+ return u"Spent: %s" % unicode(self.book)
+
+
+def new_payment_query_listener(sender, order=None, payment=None, **kwargs):
+ """ Set payment details for getpaid. """
+ payment.amount = order.amount
+ payment.currency = 'PLN'
+getpaid.signals.new_payment_query.connect(new_payment_query_listener)
+
+
+def payment_status_changed_listener(sender, instance, old_status, new_status, **kwargs):
+ """ React to status changes from getpaid. """
+ if old_status != 'paid' and new_status == 'paid':
+ instance.order.payed_at = datetime.now()
+ instance.order.save()
+getpaid.signals.payment_status_changed.connect(payment_status_changed_listener)
fnp / wolnelektury.git / blobdiff