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 sponsors.fields import JSONField
   6
   7
   8 class Sponsor(models.Model):
   9     name = models.CharField(_('name'), max_length=120)
  10     _description = models.CharField(_('description'), blank=True, max_length=255)
  11     logo = models.ImageField(_('logo'), upload_to='sponsors/sponsor/logo')
  12     url = models.URLField(_('url'), blank=True, verify_exists=False)
  13
  14     def __unicode__(self):
  15         return self.name
  16
  17     def description(self):
  18         if len(self._description):
  19             return self._description
  20         else:
  21             return self.name
  22
  23
  24 class SponsorPage(models.Model):
  25     name = models.CharField(_('name'), max_length=120)
  26     column_width = models.PositiveIntegerField(_('column width'), default=200)
  27     sponsors = JSONField(_('sponsors'), default={})
  28     _html = models.TextField(blank=True, editable=False)
  29
  30     def populated_sponsors(self):
  31         result = []
  32         for column in self.get_sponsors_value():
  33             result_group = {'name': column['name'], 'sponsors': []}
  34             sponsor_objects = Sponsor.objects.in_bulk(column['sponsors'])
  35             for sponsor_pk in column['sponsors']:
  36                 try:
  37                     result_group['sponsors'].append(sponsor_objects[sponsor_pk])
  38                 except KeyError:
  39                     pass
  40             result.append(result_group)
  41         return result
  42
  43     def html(self):
  44         return self._html
  45     html = property(fget=html)
  46
  47     def save(self, *args, **kwargs):
  48         self._html = render_to_string('sponsors/page.html', {
  49             'column_width': self.column_width,
  50             'sponsors': self.populated_sponsors(),
  51         })
  52         return super(SponsorPage, self).save(*args, **kwargs)
  53
  54     def __unicode__(self):
  55         return self.name
  56