app/soc/logic/models/document.py
author Sverre Rabbelier <srabbelier@gmail.com>
Thu, 26 Feb 2009 16:51:35 +0000
changeset 1516 8df06dc877aa
parent 1419 5d0f80ad7b9f
child 1517 a467d13e34ea
permissions -rw-r--r--
Do not update newly created model properties There is no real reason to favor old behavior over the current, plus the new behavior saves an extra disk write (which are expensive). Patch by: Sverre Rabbelier

#!/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 _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()

    home_for = entity.home_for

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

    return True


logic = Logic()