app/soc/logic/models/request.py
author Todd Larsen <tlarsen@google.com>
Fri, 21 Nov 2008 11:44:39 +0000
changeset 535 9045b8888772
parent 530 8d5adb2b8d48
child 562 1bf2beedda03
permissions -rw-r--r--
Refactor classes in soc/logic/models to make more use of inheritance. Add some missing classes, such as soc.logic.models.group.Logic, so that key name similarities between various Groups can be exploited via inheritance instead of repetition of code. Patch by: Todd Larsen

#!/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.

"""Host (Model) query functions.
"""

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


from soc.logic.models import base

import soc.models.request


class Logic(base.Logic):
  """Logic methods for the Request model.
  """

  def __init__(self, model=soc.models.request.Request,
               base_model=None):
    """Defines the name, key_name and model for this entity.
    """

    base.Logic.__init__(self, model, base_model=base_model)

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

    return [entity.role, entity.to.link_id, entity.requester.link_id]

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

    # TODO: "program_ln" might be needed here, since some Groups, such as
    #   Organizations, are per-Program, per-Year
    return [fields['role'], fields['group_ln'], fields['user_ln']]

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

    return ['role', 'group_ln', 'user_ln']


logic = Logic()