app/soc/logic/cleaning.py
author Sverre Rabbelier <srabbelier@gmail.com>
Fri, 28 Nov 2008 22:48:41 +0000
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Added a cleaning module This module is the start of a (hopefully more generic) set of cleaning functions that can be used in the GAE forms. Patch by: Sverre Rabbelier
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#!/usr/bin/python2.5
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#
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# Copyright 2008 the Melange authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#   http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Generic cleaning methods
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"""
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__authors__ = [
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    '"Todd Larsen" <tlarsen@google.com>',
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    '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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    ]
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from django import forms
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from soc.logic import validate
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def clean_new_link_id(logic):
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  """Clean method for new link_id's
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  Returns a clean method that checks if the specified link_id is
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  in the proper format, and verifies that the link_id is not already in
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  in use by another entity of the same type.
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  """
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  def wrapped(self):
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    link_id = self.cleaned_data.get('link_id')
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    if not validate.isLinkIdFormatValid(link_id):
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      raise forms.ValidationError("This link ID is in wrong format.")
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    if logic.getFromFields(link_id=link_id):
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      raise forms.ValidationError("This link ID is already in use.")
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    return link_id
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  return wrapped
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def clean_link_id(self):
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  link_id = self.cleaned_data.get('link_id')
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  if not validate.isLinkIdFormatValid(link_id):
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    raise forms.ValidationError("This link ID is in wrong format.")
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  return link_id
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def clean_feed_url(self):
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  feed_url = self.cleaned_data.get('feed_url')
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  if feed_url == '':
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    # feed url not supplied (which is OK), so do not try to validate it
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    return None
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  if not validate.isFeedURLValid(feed_url):
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    raise forms.ValidationError('This URL is not a valid ATOM or RSS feed.')
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  return feed_url