apps/sponsors/widgets.py

   1 from django import forms
   2 from django.conf import settings
   3 from django.utils.safestring import mark_safe
   4 from django.utils.translation import ugettext_lazy as _
   5
   6 from sponsors import models
   7
   8
   9 class OrderedSelectMultiple(forms.TextInput):
  10     """
  11     A SelectMultiple with a JavaScript interface.
  12     """
  13     class Media:
  14         js = (
  15             'http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js',
  16             'http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js',
  17             settings.MEDIA_URL + 'js/ordered_select_multiple.js',
  18         )
  19
  20     def render(self, name, value, attrs=None, choices=()):
  21         output = [super(OrderedSelectMultiple, self).render(name, value, attrs)]
  22         choices = [(unicode(obj), obj.pk) for obj in models.Sponsor.objects.all()]
  23         choices_js = ', '.join('{name: "%s", id: %d}' % choice for choice in choices)
  24         output.append(u'<script type="text/javascript">addEvent(window, "load", function(e) {')
  25         # TODO: "id_" is hard-coded here. This should instead use the correct
  26         # API to determine the ID dynamically.
  27         output.append(u'$("#id_%s").orderedSelectMultiple({choices: [%s]}); });</script>\n' %
  28             (name, choices_js))
  29         return mark_safe(u''.join(output))
  30