+
−#!/usr/bin/python2.5
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−#
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−# Copyright 2008 the Melange authors.
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−#
+
−# Licensed under the Apache License, Version 2.0 (the "License");
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−# 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
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−# distributed under the License is distributed on an "AS IS" BASIS,
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−# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
−# See the License for the specific language governing permissions and
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−# limitations under the License.
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−
+
−"""Group (Model) query functions.
+
−"""
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−
+
−__authors__ = [
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−  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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−  ]
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−
+
−
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−from soc.logic.models import base
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−
+
−import soc.models.group
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−
+
−
+
−class Logic(base.Logic):
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−  """Logic methods for the Group model.
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−  """
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−
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−  def __init__(self, model=soc.models.group.Group,
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−               base_model=None, scope_logic=None):
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−    """Defines the name, key_name and model for this entity.
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−    """
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−
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−    super(Logic, self).__init__(model, base_model=base_model,
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−                                scope_logic=scope_logic)
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−
+
−  def getKeyValuesFromEntity(self, entity):
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−    """Extracts the key values from entity and returns them.
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−
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−    The default implementation for Groups assumes that the Group is site-wide
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−    and thus has no scope.  Such Groups include Sponsors and Clubs.  Any
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−    Group that exists per-Program or per-Year will need to override this
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−    method.
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−
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−    Args:
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−      entity: the entity from which to extract the key values
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−    """
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−
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−    return [entity.link_id]
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−
+
−  def getKeyValuesFromFields(self, fields):
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−    """Extracts the key values from a dict and returns them.
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−
+
−    The default implementation for Groups assumes that the Group is site-wide
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−    and thus has no scope.  Such Groups include Sponsors and Clubs.  Any
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−    Group that exists per-Program or per-Year will need to override this
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−    method.
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−
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−    Args:
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−      fields: the dict from which to extract the key values
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−    """
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−
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−    return [fields['link_id']]
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−
+
−  def getKeyFieldNames(self):
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−    """Returns an array with the names of the Key Fields.
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−
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−    The default implementation for Groups assumes that the Group is site-wide
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−    and thus has no scope.  Such Groups include Sponsors and Clubs.  Any
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−    Group that exists per-Program or per-Year will need to override this
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−    method.
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−    """
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−
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−    return ['link_id']
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−
+
−
+
−  def isDeletable(self, entity):
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−    """Returns whether the specified Group entity can be deleted.
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−
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−    Generically, a Group can always be deleted.  Subclasses of group.Logic
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−    should add their own deletion prerequisites.
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−    
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−    Args:
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−      entity: an existing Group entity in the Datastore
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−    """
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−
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−    return True
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−
+
−
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−logic = Logic()