apps/sponsors/models.py

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