#!/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.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 _updateField(self, entity, name, value):

    """Special logic for role. If state changes to active we flush the sidebar.

    """

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

      sidebar.flush()

    return True

  def _onCreate(self, entity):

    """Flush the sidebar cache when a new active role entity has been created.

    """

    if entity.is_featured:

      sidebar.flush()

logic = Logic()