#!/usr/bin/python2.5

#

# Copyright 2008 the Melange authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#   http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""Module contains sidemap related functions.

"""

__authors__ = [

    '"Sverre Rabbelier" <sverre@rabbelier.nl>',

  ]

def getDjangoURLPatterns(params):

  """Retrieves a list of sidebar entries for this View.

  Params usage:

    The params dictionary is passed to the getKeyFieldsPatterns

    method, see it's docstring on how it is used.

    django_patterns: The django_patterns value is returned directly

      if it is non-False.

    django_patterns_defaults: The dajngo_patterns_defaults value is

      used to construct the url patterns. It is expected to be a

      list of tuples. The tuples should contain an url, a module

      name, and the name of the url. The name is used as the

      page_name passed as keyword argument, but also as the name

      by which the url is known to Django internally.

    url_name: The url_name argument is passed as argument to each

      url, together with the link_id pattern, the link_id core

      pattern, and the key fields for this View.

  Args:

    params: a dict with params for this View

  """

  # Return the found result

  if params['django_patterns']:

    return params['django_patterns']

  # Construct defaults manualy

  default_django_patterns = params['django_patterns_defaults']

  default_patterns = default_django_patterns[:]

  default_patterns += params['extra_django_patterns']

  patterns = []

  for url, module, name in default_patterns:

    name = name % params

    module = module % params

    url = url % {

        'url_name': params['url_name'],

        'lnp': params['link_id_arg_pattern'],

        'ulnp': params['link_id_pattern_core'],

        'key_fields': params['key_fields_pattern'],

        'scope': params['scope_path_pattern'],

        'sans_link_id': params['sans_link_id_pattern'],

        }

    kwargs = {'page_name': name}

    item = (url, module, kwargs, name)

    patterns.append(item)

  return patterns