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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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−
+
−"""Request (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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−import soc.models.request
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−
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−from soc.logic.helper import notifications
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−from soc.logic.models import base
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−from soc.logic.models import linkable as linkable_logic
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−
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−
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−class Logic(base.Logic):
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−  """Logic methods for the Request model.
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−  """
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−
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−  def __init__(self, model=soc.models.request.Request,
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−               base_model=None, scope_logic=linkable_logic):
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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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−  def getKeyValuesFromEntity(self, entity):
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−    """See base.Logic.getKeyNameValues.
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−    """
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−
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−    return [entity.scope.link_id, entity.role, entity.link_id]
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−
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−  def getKeyValuesFromFields(self, fields):
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−    """See base.Logic.getKeyValuesFromFields.
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−    """
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−
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−    return [fields['scope_path'], fields['role'], fields['link_id']]
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−
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−  def getKeyFieldNames(self):
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−    """See base.Logic.getKeyFieldNames.
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−    """
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−
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−    return ['scope_path', 'role', 'link_id']
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−
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−  def _onCreate(self, entity):
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−    """Sends out a message notifying users about the new invite/request.
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−    """
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−
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−    if entity.status == 'group_accepted':
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−      # this is an invite
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−      notifications.sendInviteNotification(entity)
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−    elif entity.status == 'new':
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−      # this is a request
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−      notifications.sendNewRequestNotification(entity)
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−
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−    super(Logic, self)._onCreate(entity)
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−
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−  def _updateField(self, entity, entity_properties, name):
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−    """Called when the fields of the request are updated.
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−
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−      Sends out a message depending on the change of status.
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−    """
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−
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−    value = entity_properties[name]
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−
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−    if name == 'status' and entity.status != value:
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−      if value == 'group_accepted':
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−       # this is an invite
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−        notifications.sendInviteNotification(entity)
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−      elif value == 'new':
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−        # this is a request
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−        notifications.sendNewRequestNotification(entity)
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−
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−    return super(Logic, self)._updateField(entity, entity_properties, name)
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−
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−
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−logic = Logic()