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url_converters.py
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Tue, Oct 15, 10:56

url_converters.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2013 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
invenio.modules.deposit.url_converters
--------------------------------------
This module defines custom `url_map` `converters`.
"""
import re
from werkzeug.routing import BaseConverter, ValidationError
from werkzeug.utils import cached_property
class DepositionConverter(BaseConverter):
"""Matches one of the items provided. Items can either be Python
identifiers or strings::
Rule('/<depositions:page_name>')
:param map: the :class:`Map`.
:param items: this function accepts the possible items as positional
arguments.
"""
def __init__(self, map):
BaseConverter.__init__(self, map)
@cached_property
def regex(self):
return '[^/]{1,}'
#items = [lambda x: '"%s"' % x, DepositionType.keys()]
#return '(?:%s)' % '|'.join([re.escape(x) for x in items])
def to_python(self, value):
try:
#FIXME there is a problem with the first request when
# `match_request` is call ouside application context.
from .models import DepositionType
keys = DepositionType.keys()
except:
keys = []
if not value in keys:
raise ValidationError()
return value
def to_url(self, value):
return value
def setup_app(app):
"""Installs 'depositions' url_map converter."""
app.url_map.converters['depositions'] = DepositionConverter
return app

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