apps/sponsors/models.py

   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.
   4 #
   5 from django.db import models
   6 from django.utils.translation import ugettext_lazy as _
   7 from django.template.loader import render_to_string
   8
   9 from sorl.thumbnail.fields import ImageWithThumbnailsField
  10 from sponsors.fields import JSONField
  11
  12
  13 class Sponsor(models.Model):
  14     name = models.CharField(_('name'), max_length=120)
  15     _description = models.CharField(_('description'), blank=True, max_length=255)
  16     logo = ImageWithThumbnailsField(
  17         _('logo'),
  18         upload_to='sponsors/sponsor/logo',
  19         thumbnail={
  20             'size': (120, 60),
  21             'extension': 'png',
  22             'options': ['pad', 'detail'],
  23         })
  24     url = models.URLField(_('url'), blank=True, verify_exists=False)
  25
  26     def __unicode__(self):
  27         return self.name
  28
  29     def description(self):
  30         if len(self._description):
  31             return self._description
  32         else:
  33             return self.name
  34
  35
  36 class SponsorPage(models.Model):
  37     name = models.CharField(_('name'), max_length=120)
  38     sponsors = JSONField(_('sponsors'), default={})
  39     _html = models.TextField(blank=True, editable=False)
  40
  41     def populated_sponsors(self):
  42         result = []
  43         for column in self.get_sponsors_value():
  44             result_group = {'name': column['name'], 'sponsors': []}
  45             sponsor_objects = Sponsor.objects.in_bulk(column['sponsors'])
  46             for sponsor_pk in column['sponsors']:
  47                 try:
  48                     result_group['sponsors'].append(sponsor_objects[sponsor_pk])
  49                 except KeyError:
  50                     pass
  51             result.append(result_group)
  52         return result
  53
  54     def html(self):
  55         return self._html
  56     html = property(fget=html)
  57
  58     def save(self, *args, **kwargs):
  59         self._html = render_to_string('sponsors/page.html', {
  60             'sponsors': self.populated_sponsors(),
  61         })
  62         return super(SponsorPage, self).save(*args, **kwargs)
  63
  64     def __unicode__(self):
  65         return self.name
  66