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.
"""User (Model) query functions.
"""
__authors__ = [
'"Sverre Rabbelier" <sverre@rabbelier.nl>',
]
from soc.logic.models import base
import soc.models.user
class Logic(base.Logic):
"""Logic methods for the User model.
"""
def __init__(self):
"""Defines the name, key_name and model for this entity.
"""
base.Logic.__init__(self, soc.models.user.User,
skip_properties=['former_accounts'])
def isFormerAccount(self, account):
"""Returns true if account is a former account of some User.
"""
# TODO(pawel.solyga): replace 1000 with solution that works for any
# number of queries
users_with_former_accounts = soc.models.user.User.gql(
'WHERE former_accounts != :1', None).fetch(1000)
for former_account_user in users_with_former_accounts:
if account in former_account_user.former_accounts:
return True
return False
def getKeyValues(self, entity):
"""See base.Logic.getKeyValues.
"""
return [entity.link_id]
def getSuffixValues(self, entity):
"""See base.Logic.getSuffixValues.
"""
return [entity.link_id]
def getKeyValuesFromFields(self, fields):
"""See base.Logic.getKeyValuesFromFields.
"""
return [fields['link_id']]
def getKeyFieldNames(self):
"""See base.Logic.getKeyFieldNames.
"""
return ['link_id']
def _updateField(self, model, name, value):
"""Special case logic for account.
When the account is changed, the former_accounts field should be appended
with the old account.
"""
if (name == 'account') and (model.account != value):
model.former_accounts.append(model.account)
return True
logic = Logic()