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−#!/usr/bin/python2.5
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−#
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−# Copyright 2009 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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−"""This module contains the Follower Model."""
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−
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−__authors__ = [
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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 google.appengine.ext import db
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−
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−import soc.models.linkable
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−
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−
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−class Follower(soc.models.linkable.Linkable):
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−  """Details specific to a Follower.
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−
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−    A Follower is a generic model which indicates that a User is following
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−    some other Linkable entity in the application.
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−
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−    Scope and scope_path should be set to the entity being followed.
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−    The link_id should be used to indicate which user is following.
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−
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−    If more functionality is needed like for instance when following 
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−    either a public or private review for Student Proposals this model
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−    should be extended. As to make it possible to create different types
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−    of following.
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−  """
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−
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−  #: Required property to tie a user to the entity it is following
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−  user = db.ReferenceProperty(reference_class=soc.models.user.User,
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−                              required=True, collection_name='following')
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−