1 # -*- coding: utf-8 -*-
2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
5 from django.core.urlresolvers import reverse
6 from django.db import models
7 from django.utils.translation import ugettext_lazy as _, ugettext as __
8 from datetime import date, datetime
9 from catalogue.models import Book
12 class Offer(models.Model):
13 author = models.CharField(_('author'), max_length=255)
14 title = models.CharField(_('title'), max_length=255)
15 slug = models.SlugField(_('slug'))
16 book = models.ForeignKey(Book, null=True, blank=True,
17 help_text=_('Published book.'))
18 redakcja_url = models.URLField(_('redakcja URL'), blank=True)
19 target = models.DecimalField(_('target'), decimal_places=2, max_digits=10)
20 start = models.DateField(_('start'))
21 end = models.DateField(_('end'))
22 due = models.DateField(_('due'),
23 help_text=_('When will it be published if the money is raised.'))
26 verbose_name = _('offer')
27 verbose_name_plural = _('offers')
30 def __unicode__(self):
31 return u"%s – %s" % (self.author, self.title)
33 def get_absolute_url(self):
34 return reverse('funding_offer', args=[self.slug])
37 return self.start <= date.today() <= self.end
42 objects = cls.objects.filter(start__lte=today, end__gte=today)
51 return cls.objects.filter(start__lte=today)
53 def get_perks(self, amount=None):
54 perks = Perk.objects.filter(
55 models.Q(offer=self) | models.Q(offer=None)
57 if amount is not None:
58 perks = perks.filter(price__lte=amount)
61 def fund(self, name, email, amount, anonymous=False):
62 funding = self.funding_set.create(
63 name=name, email=email, amount=amount,
65 payed_at=datetime.now())
66 funding.perks = self.get_perks(amount)
70 return self.funding_set.aggregate(s=models.Sum('amount'))['s'] or 0
73 if self.sum() >= self.target:
75 elif self.start <= date.today() <= self.end:
81 class Perk(models.Model):
82 offer = models.ForeignKey(Offer, verbose_name=_('offer'), null=True, blank=True)
83 price = models.DecimalField(_('price'), decimal_places=2, max_digits=10)
84 name = models.CharField(_('name'), max_length=255)
85 description = models.TextField(_('description'), blank=True)
88 verbose_name = _('perk')
89 verbose_name_plural = _('perks')
92 def __unicode__(self):
93 return "%s (%s%s)" % (self.name, self.price, u" for %s" % self.offer if self.offer else "")
96 class Funding(models.Model):
97 offer = models.ForeignKey(Offer, verbose_name=_('offer'))
98 name = models.CharField(_('name'), max_length=127)
99 email = models.EmailField(_('email'))
100 amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
101 payed_at = models.DateTimeField(_('payed at'))
102 perks = models.ManyToManyField(Perk, verbose_name=_('perks'), blank=True)
103 anonymous = models.BooleanField(_('anonymous'))
106 verbose_name = _('funding')
107 verbose_name_plural = _('fundings')
108 ordering = ['-payed_at']
110 def __unicode__(self):
111 return "%s payed %s for %s" % (self.name, self.amount, self.offer)
114 class Spent(models.Model):
115 amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
116 timestamp = models.DateField(_('when'))
117 book = models.ForeignKey(Book)
120 verbose_name = _('money spent on a book')
121 verbose_name_plural = _('money spent on books')
122 ordering = ['-timestamp']
124 def __unicode__(self):
125 return u"Spent: %s" % unicode(self.book)