app/soc/logic/models/document.py
author Lennard de Rijk <ljvderijk@gmail.com>
Thu, 04 Jun 2009 21:58:05 +0200
changeset 2384 71780864a5ed
parent 1669 47c1048fc4ef
child 2427 0dee663d6582
permissions -rw-r--r--
Now showing link to edit the home page document on the home page. This will only show up if you have the right to edit the document. Update issue 271 Now also working for home pages.

#!/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.

"""Document (Model) query functions.
"""

__authors__ = [
  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
  ]


from soc.cache import sidebar
from soc.cache import home
from soc.logic.models import work
from soc.logic.models import linkable as linkable_logic

import soc.models.document
import soc.models.work


class Logic(work.Logic):
  """Logic methods for the Document model
  """

  def __init__(self, model=soc.models.document.Document,
               base_model=soc.models.work.Work, scope_logic=linkable_logic):
    """Defines the name, key_name and model for this entity.
    """

    super(Logic, self).__init__(model=model, base_model=base_model,
                                scope_logic=scope_logic)

  def getKeyValuesFromEntity(self, entity):
    """See base.Logic.getKeyNameValues.
    """

    return [entity.prefix, entity.scope_path, entity.link_id]

  def getKeyValuesFromFields(self, fields):
    """See base.Logic.getKeyValuesFromFields.
    """

    return [fields['prefix'], fields['scope_path'], fields['link_id']]

  def getKeyFieldNames(self):
    """See base.Logic.getKeyFieldNames.
    """

    return ['prefix', 'scope_path', 'link_id']

  def isDeletable(self, entity):
    """See base.Logic.isDeletable.
    """

    return not entity.home_for

  def _updateField(self, entity, entity_properties, name):
    """Special logic for role. If state changes to active we flush the sidebar.
    """

    value = entity_properties[name]

    if (name == 'is_featured') and (entity.is_featured != value):
      sidebar.flush()

    home_for = entity.home_for

    if (name != 'home_for') and home_for:
      home.flush(home_for)

    return True


logic = Logic()