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−#!/usr/bin/python2.5
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−#
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−# Copyright 2008 the Melange authors.
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−#
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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.
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−# You may obtain a copy of the License at
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−#
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−#   http://www.apache.org/licenses/LICENSE-2.0
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−#
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−# 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.
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−# See the License for the specific language governing permissions and
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−# limitations under the License.
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−
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−"""Role (Model) query functions.
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−"""
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−
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−__authors__ = [
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−  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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−  '"Lennard de Rijk" <ljvderijk@gmail.com>',
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−  ]
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−
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−
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−from soc.cache import sidebar
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−from soc.logic.models import base
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−
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−import soc.models.role
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−
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−
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−class Logic(base.Logic):
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−  """Logic methods for the Role model.
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−  """
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−
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−  def __init__(self, model=soc.models.role.Role,
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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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−
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−
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−  def getGroupEntityFromScopePath(self, group_logic, scope_path):
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−    """Returns a group entity by using the given scope_path.
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−    
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−    Args:
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−      group_logic: logic for the group which should be retrieved
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−      scope_path : the scope path of the entity
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−    """
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−    group_key_fields = scope_path.rsplit('/',1)
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−
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−    if len(group_key_fields) == 1:
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−      # there is only a link_id
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−      fields = {'link_id' : group_key_fields[0]}
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−    else:
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−      # there is a scope_path and link_id
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−      fields = {'scope_path' : group_key_fields[0],
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−                'link_id' : group_key_fields[1]}
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−
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−    group = group_logic.getForFields(fields, unique=True)
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−
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−    return group
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−
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−  def _updateField(self, entity, name, value):
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−    """Special logic for role. If status changes to active we flush the sidebar.
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−    """
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−
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−    if (name == 'status') and (entity.status != value) and value == 'active':
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−      # in case the status of the role changes to active we flush the sidebar
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−      # cache. Other changes will be visible after the retention time expires.
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−      sidebar.flush(entity.user.account)
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−
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−    return True
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−  
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−  def _onCreate(self, entity):
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−    """Flush the sidebar cache when a new active role entity has been created.
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−    """
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−
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−    if entity.status == 'active':
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−      sidebar.flush(entity.user.account)
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−
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−
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−logic = Logic()