old_contents: from django.http import HttpResponseRedirect, Http404
  from django.shortcuts import get_object_or_404
  
  from django.contrib.auth.decorators import login_required
  from django.contrib.contenttypes.models import ContentType
  from django.utils.translation import ugettext as _
  
  from flag.models import add_flag
  
  
  @login_required
  def flag(request):
      
      content_type = request.POST.get("content_type")
      object_id = request.POST.get("object_id")
      creator_field = request.POST.get("creator_field")
      comment = request.POST.get("comment")
      next = request.POST.get("next")
      
      content_type = get_object_or_404(ContentType, id = int(content_type))
      object_id = int(object_id)
      
      content_object = content_type.get_object_for_this_type(id=object_id)
      
      if creator_field and hasattr(content_object, creator_field):
          creator = getattr(content_object, creator_field)
      else:
          creator = None
      
      add_flag(request.user, content_type, object_id, creator, comment)
      request.user.message_set.create(
          message = _("You have added a flag. A moderator will review your "
              "submission shortly.")
      )
      
      if next:
          return HttpResponseRedirect(next)
      else:
          return Http404
  
new_contents: from django.http import HttpResponseRedirect, Http404
  from django.shortcuts import get_object_or_404
  
  from django.contrib.auth.decorators import login_required
  from django.contrib.contenttypes.models import ContentType
  from django.utils.translation import ugettext as _
  from django.contrib import messages
  
  from flag.models import add_flag
  
  
  @login_required
  def flag(request):
      
      content_type = request.POST.get("content_type")
      object_id = request.POST.get("object_id")
      creator_field = request.POST.get("creator_field")
      comment = request.POST.get("comment")
      next = request.POST.get("next")
      
      content_type = get_object_or_404(ContentType, id = int(content_type))
      object_id = int(object_id)
      
      content_object = content_type.get_object_for_this_type(id=object_id)
      
      if creator_field and hasattr(content_object, creator_field):
          creator = getattr(content_object, creator_field)
      else:
          creator = None
      
      add_flag(request.user, content_type, object_id, creator, comment)
      messages.success(request, _("You have added a flag. A moderator will review your submission shortly."), fail_silently=True)
      
      if next:
          return HttpResponseRedirect(next)
      else:
          return Http404
  
subject: fix incompatiblity with django 1.4