tasks/templatefilters.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2008 Google Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 """Django template filters for the Task List application."""
  18
  19 __author__ = 'Bret Taylor'
  20
  21 import datetime
  22 import time
  23
  24 from google.appengine.ext.webapp import template
  25
  26
  27 def rfc3339date(date):
  28   """Formats the given date in RFC 3339 format for feeds."""
  29   if not date: return ''
  30   date = date + datetime.timedelta(seconds=-time.timezone)
  31   if time.daylight:
  32     date += datetime.timedelta(seconds=time.altzone)
  33   return date.strftime('%Y-%m-%dT%H:%M:%SZ')
  34
  35
  36 # Register the filter functions with Django
  37 register = template.create_template_register()
  38 register.filter(rfc3339date)