X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/8d1372958ce4a205f11fcdd44cf6e9cac8429a69..ff132bd3bbbad657112d7a7d9e16fe7530055b3f:/apps/funding/models.py diff --git a/apps/funding/models.py b/apps/funding/models.py index a088a07b7..31e2757eb 100644 --- a/apps/funding/models.py +++ b/apps/funding/models.py @@ -2,21 +2,27 @@ # 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') @@ -29,8 +35,12 @@ class Offer(models.Model): 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: @@ -40,26 +50,30 @@ class Offer(models.Model): @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: @@ -71,10 +85,16 @@ class Offer(models.Model): 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') @@ -86,17 +106,65 @@ class Perk(models.Model): 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)