lib/utils.py

   1 from django.core import validators
   2 from django.conf import settings
   3 from django.core.cache import cache
   4 from django.shortcuts import render_to_response
   5 from django.template import RequestContext
   6
   7 def validate(errdict, fieldname, fieldval, validator, blankallowed, request):
   8     """
   9     A helper function that allows easy access to Django's validators without
  10     going through a Manipulator object.  Will return a dict of all triggered
  11     errors.
  12     """
  13     if blankallowed and not fieldval:
  14         return
  15     alldata = ' '.join(request.POST.values()) + ' '.join(request.GET.values())
  16     try:
  17         validator(fieldval, alldata)
  18     except validators.ValidationError, e:
  19         if not errdict.has_key(fieldname):
  20             errdict[fieldname] = []
  21         errdict[fieldname].append(e)
  22
  23 def prune_cache(django_page_url):
  24     if not settings.CACHE:
  25         return
  26     cache_prefix = 'views.decorators.cache.cache_page.'
  27     cache_prefix += settings.CACHE_MIDDLEWARE_KEY_PREFIX + '.'
  28     cache_postfix = '.d41d8cd98f00b204e9800998ecf8427e'
  29     cache.delete('%s%s%s' % (cache_prefix,django_page_url,cache_postfix))
  30
  31 def render_response(req, *args, **kwargs):
  32     kwargs['context_instance'] = RequestContext(req)
  33     return render_to_response(*args, **kwargs)
  34
  35 # vim: set ts=4 sw=4 et:
  36