Code layout change.
[wolnelektury.git] / apps / funding / models.py
diff --git a/apps/funding/models.py b/apps/funding/models.py
deleted file mode 100644 (file)
index de52ac9..0000000
+++ /dev/null
@@ -1,327 +0,0 @@
-# -*- coding: utf-8 -*-
-# 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 urllib import urlencode
-from django.core.urlresolvers import reverse
-from django.core.mail import send_mail
-from django.conf import settings
-from django.template.loader import render_to_string
-from django.db import models
-from django.utils.translation import ugettext_lazy as _, ugettext, override
-import getpaid
-from catalogue.models import Book
-from catalogue.utils import get_random_hash
-from polls.models import Poll
-from django.contrib.sites.models import Site
-from . import app_settings
-
-
-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'))
-    description = models.TextField(_('description'), blank=True)
-    target = models.DecimalField(_('target'), decimal_places=2, max_digits=10)
-    start = models.DateField(_('start'), db_index=True)
-    end = models.DateField(_('end'), db_index=True)
-    redakcja_url = models.URLField(_('redakcja URL'), blank=True)
-    book = models.ForeignKey(Book, null=True, blank=True,
-        help_text=_('Published book.'))
-    cover = models.ImageField(_('Cover'), upload_to = 'funding/covers')
-    poll = models.ForeignKey(Poll, help_text = _('Poll'),  null = True, blank = True, on_delete = models.SET_NULL)
-
-    notified_near = models.DateTimeField(_('Near-end notifications sent'), blank=True, null=True)
-    notified_end = models.DateTimeField(_('End notifications sent'), blank=True, null=True)
-
-    def cover_img_tag(self):
-        return u'<img src="%s" />' % self.cover.url
-    cover_img_tag.short_description = _('Cover preview')
-    cover_img_tag.allow_tags = True
-        
-    class Meta:
-        verbose_name = _('offer')
-        verbose_name_plural = _('offers')
-        ordering = ['-end']
-
-    def __unicode__(self):
-        return u"%s - %s" % (self.author, self.title)
-
-    def get_absolute_url(self):
-        return reverse('funding_offer', args=[self.slug])
-
-    def save(self, *args, **kw):
-        published_now = (self.book_id is not None and 
-            self.pk is not None and
-            type(self).objects.values('book').get(pk=self.pk)['book'] != self.book_id)
-        retval = super(Offer, self).save(*args, **kw)
-        if published_now:
-            self.notify_published()
-        return retval
-
-    def is_current(self):
-        return self.start <= date.today() <= self.end and self == self.current()
-
-    def is_win(self):
-        return self.sum() >= self.target
-
-    def remaining(self):
-        if self.is_current():
-            return None
-        if self.is_win():
-            return self.sum() - self.target
-        else:
-            return self.sum()
-
-    @classmethod
-    def current(cls):
-        """ Returns current fundraiser or None.
-
-        Current fundraiser is the one that:
-        - has already started,
-        - hasn't yet ended,
-        - if there's more than one of those, it's the one that ends last.
-
-        """
-        today = date.today()
-        objects = cls.objects.filter(start__lte=today, end__gte=today).order_by('-end')
-        try:
-            return objects[0]
-        except IndexError:
-            return None
-
-    @classmethod
-    def past(cls):
-        """ QuerySet for all past fundraisers. """
-        objects = cls.public()
-        current = cls.current()
-        if current is not None:
-            objects = objects.exclude(pk=current.pk)
-        return objects
-
-    @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 funding_payed(self):
-        """ QuerySet for all completed payments for the offer. """
-        return Funding.payed().filter(offer=self)
-
-    def funders(self):
-        return self.funding_payed().order_by('-amount', 'payed_at')
-
-    def sum(self):
-        """ The money gathered. """
-        return self.funding_payed().aggregate(s=models.Sum('amount'))['s'] or 0
-
-    def notify_all(self, subject, template_name, extra_context=None):
-        Funding.notify_funders(
-            subject, template_name, extra_context,
-            query_filter=models.Q(offer=self)
-        )
-
-    def notify_end(self, force=False):
-        if not force and self.notified_end: return
-        assert not self.is_current()
-        self.notify_all(
-            _('The fundraiser has ended!'),
-            'funding/email/end.txt', {
-                'offer': self,
-                'is_win': self.is_win(),
-                'remaining': self.remaining(),
-                'current': self.current(),
-            })
-        self.notified_end = datetime.now()
-        self.save()
-
-    def notify_near(self, force=False):
-        if not force and self.notified_near: return
-        assert self.is_current()
-        sum_ = self.sum()
-        need = self.target - sum_
-        self.notify_all(
-            _('The fundraiser will end soon!'),
-            'funding/email/near.txt', {
-                'days': (self.end - date.today()).days + 1,
-                'offer': self,
-                'is_win': self.is_win(),
-                'sum': sum_,
-                'need': need,
-            })
-        self.notified_near = datetime.now()
-        self.save()
-
-    def notify_published(self):
-        assert self.book is not None
-        self.notify_all(
-            _('The book you helped fund has been published.'),
-            'funding/email/published.txt', {
-                'offer': self,
-                'book': self.book,
-                'author': ", ".join(a[0] for a in self.book.related_info()['tags']['author']),
-                'current': self.current(),
-            })
-
-
-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)
-    long_name = models.CharField(_('long name'), max_length=255)
-    end_date = models.DateField(_('end date'), null=True, blank=True)
-
-    class Meta:
-        verbose_name = _('perk')
-        verbose_name_plural = _('perks')
-        ordering = ['-price']
-
-    def __unicode__(self):
-        return "%s (%s%s)" % (self.name, self.price, u" for %s" % self.offer if self.offer else "")
-
-
-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, blank=True)
-    email = models.EmailField(_('email'), blank=True, db_index=True)
-    amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
-    payed_at = models.DateTimeField(_('payed at'), null=True, blank=True, db_index=True)
-    perks = models.ManyToManyField(Perk, verbose_name=_('perks'), blank=True)
-    language_code = models.CharField(max_length = 2, null = True, blank = True)
-    notifications = models.BooleanField(_('notifications'), default=True, db_index=True)
-    notify_key = models.CharField(max_length=32)
-
-    class Meta:
-        verbose_name = _('funding')
-        verbose_name_plural = _('fundings')
-        ordering = ['-payed_at']
-
-    @classmethod
-    def payed(cls):
-        """ QuerySet for all completed payments. """
-        return cls.objects.exclude(payed_at=None)
-
-    def __unicode__(self):
-        return unicode(self.offer)
-
-    def get_absolute_url(self):
-        return reverse('funding_funding', args=[self.pk])
-
-    def perk_names(self):
-        return ", ".join(perk.name for perk in self.perks.all())
-
-    def get_disable_notifications_url(self):
-        return "%s?%s" % (reverse("funding_disable_notifications"),
-            urlencode({
-                'email': self.email,
-                'key': self.notify_key,
-            }))
-
-    def save(self, *args, **kwargs):
-        if self.email and not self.notify_key:
-            self.notify_key = get_random_hash(self.email)
-        return super(Funding, self).save(*args, **kwargs)
-
-    @classmethod
-    def notify_funders(cls, subject, template_name, extra_context=None,
-                query_filter=None, payed_only=True):
-        funders = cls.objects.exclude(email="").filter(notifications=True)
-        if payed_only:
-            funders = funders.exclude(payed_at=None)
-        if query_filter is not None:
-            funders = funders.filter(query_filter)
-        emails = set()
-        for funder in funders:
-            if funder.email in emails:
-                continue
-            emails.add(funder.email)
-            funder.notify(subject, template_name, extra_context)
-
-    def notify(self, subject, template_name, extra_context=None):
-        context = {
-            'funding': self,
-            'site': Site.objects.get_current(),
-        }
-        if extra_context:
-            context.update(extra_context)
-        with override(self.language_code or app_settings.DEFAULT_LANGUAGE):
-            send_mail(subject,
-                render_to_string(template_name, context),
-                getattr(settings, 'CONTACT_EMAIL', 'wolnelektury@nowoczesnapolska.org.pl'),
-                [self.email],
-                fail_silently=False
-            )
-
-    def disable_notifications(self):
-        """Disables all notifications for this e-mail address."""
-        type(self).objects.filter(email=self.email).update(notifications=False)
-
-
-# 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 user_data_query_listener(sender, order, user_data, **kwargs):
-    """ Set user data for payment. """
-    user_data['email'] = order.email
-getpaid.signals.user_data_query.connect(user_data_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()
-        if instance.order.email:
-            instance.order.notify(
-                _('Thank you for your support!'),
-                'funding/email/thanks.txt'
-            )
-getpaid.signals.payment_status_changed.connect(payment_status_changed_listener)