#!/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.

"""This module contains the School Model."""

__authors__ = [

  '"Todd Larsen" <tlarsen@google.com>',

]

from google.appengine.ext import db

from django.utils.translation import ugettext_lazy

from soc.models import base

import soc.models.group

class School(base.ModelWithFieldAttributes):

  """Details specific to a School.

  A School is a specific type of Group that gathers Students together.

  A School entity participates in the following relationships implemented

  as a db.ReferenceProperty elsewhere in another db.Model:

   students)  a 1:many relationship of Students attending (or otherwise

     belonging to) a School.  This relation is implemented as the 'students'

     back-reference Query of the Student model 'school' reference.

  """

  #: Required 1:1 relationship that ties School details to the more

  #: generic Group details.  The back-reference in the Group model is a

  #: Query named 'school'.

  group = db.ReferenceProperty(reference_class=soc.models.group.Group,

                               required=True, collection_name="school")