utils.py

   1 from django.core import validators
   2 from django.template import RequestContext
   3 from django.shortcuts import render_to_response
   4 from django.http import HttpResponseRedirect
   5 from string import *
   6 import sgmllib
   7
   8 #from archweb_dev.packages.models import Maintainer
   9 #from archweb_dev.settings import BADPRIVS_URL
  10 #def is_maintainer(view_func, badprivs_url=BADPRIVS_URL):
  11 #       """
  12 #       Decorator for views that checks that the logged-in user has a corresponding
  13 #       record in the Maintainers table.  If not, the user is forwarded to a
  14 #       "bad-privileges" page.
  15 #       """
  16 #       def _dec(view_func):
  17 #               def _checkuser(request, *args, **kwargs):
  18 #                       try:
  19 #                               m = Maintainer.objects.get(username=request.user.username)
  20 #                       except Maintainer.DoesNotExist:
  21 #                               return HttpResponseRedirect(badprivs_url)
  22 #                       return view_func(request, *args, **kwargs)
  23 #
  24 #               return _checkuser
  25 #       return _dec(view_func)
  26
  27 def render_template(template, request, context=None):
  28         """
  29         A shortcut to render_to_response with a RequestContext.  Also includes
  30         request.path in the context, so both 'path' and 'user' are accessible to
  31         the template.
  32         """
  33         if context:
  34                 context['path'] = request.path
  35                 return render_to_response(template, context_instance=RequestContext(request, context))
  36         else:
  37                 return render_to_response(template, context_instance=RequestContext(request))
  38
  39 def validate(errdict, fieldname, fieldval, validator, blankallowed, request):
  40         """
  41         A helper function that allows easy access to Django's validators without
  42         going through a Manipulator object.  Will return a dict of all triggered
  43         errors.
  44         """
  45         if blankallowed and not fieldval:
  46                 return
  47         alldata = ' '.join(request.POST.values()) + ' '.join(request.GET.values())
  48         try:
  49                 validator(fieldval, alldata)
  50         except validators.ValidationError, e:
  51                 if not errdict.has_key(fieldname): errdict[fieldname] = []
  52                 errdict[fieldname].append(e)
  53
  54
  55 # XXX: unused right now, probably not needed
  56 class Stripper(sgmllib.SGMLParser):
  57         """Helper class to strip HTML tags"""
  58         def __init__(self):
  59                 sgmllib.SGMLParser.__init__(self)
  60
  61         def strip(self, some_html):
  62                 """Strips all HTML tags and leading/trailing whitespace"""
  63                 self.theString = ""
  64                 self.feed(some_html)
  65                 self.close()
  66                 return self.theString
  67
  68         def handle_data(self, data):
  69                 self.theString += data