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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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−"""This module contains the Work Model."""
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−
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−__authors__ = [
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−  '"Todd Larsen" <tlarsen@google.com>',
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−  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
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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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−from django.utils.translation import ugettext_lazy
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−
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−import polymodel
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−
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−
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−class Work(polymodel.PolyModel):
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−  """Model of a Work created by one or more Persons in Roles.
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−
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−  Work is a "base entity" of other more specific "works" created by Persons
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−  serving in "roles".
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−
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−   authors)  a many:many relationship with Roles, stored in a separate
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−     WorksAuthors model, used to represent authorship of the Work.  See
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−     the WorksAuthors model class for details.
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−
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−   reviews)  a 1:many relationship between a Work and the zero or more
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−     Reviews of that Work.  This relation is implemented as the 'reviews'
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−     back-reference Query of the Review model 'reviewed' reference.
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−  """
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−
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−  #: Required field indicating the "title" of the work, which may have
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−  #: different uses depending on the specific type of the work. Works
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−  #: can be indexed, filtered, and sorted by 'title'.
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−  title = db.StringProperty(required=True,
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−      verbose_name=ugettext_lazy('Title'))
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−  title.help_text = ugettext_lazy(
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−      'title of the document; often used in the window title')
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−
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−  #: optional, indexed plain text field used for different purposes,
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−  #: depending on the specific type of the work
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−  abstract = db.StringProperty(multiline=True)
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−  abstract.help_text = ugettext_lazy(
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−      'short abstract, summary, or snippet;'
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−      ' 500 characters or less, plain text displayed publicly')
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−
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−  #: Required path, prepended to a "link name" to form the document URL.
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−  #: The combined path and link name must be globally unique on the
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−  #: site.  Except in /site/docs (Developer) forms, this field is not
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−  #: usually directly editable by the User, but is instead set by controller
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−  #: logic to match the "scope" of the document.
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−  partial_path = db.StringProperty(required=True,
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−      verbose_name=ugettext_lazy('Partial path'))
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−  partial_path.help_text = ugettext_lazy(
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−    'path portion of URLs, prepended to link name')
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−
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−  #: Required link name, appended to a "path" to form the document URL.
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−  #: The combined path and link name must be globally unique on the
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−  #: site (but, unlike some link names, a Work link name can be reused,
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−  #: as long as the combination with the preceding path is unique).
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−  link_name = db.StringProperty(required=True,
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−      verbose_name=ugettext_lazy('Link name'))
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−  link_name.help_text = ugettext_lazy('link name used in URLs')
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−
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−  #: short name used in places such as the sidebar menu and breadcrumb trail
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−  #: (optional: title will be used if short_name is not present)
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−  short_name = db.StringProperty(verbose_name=ugettext_lazy('Short name'))
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−  short_name.help_text = ugettext_lazy(
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−      'short name used, for example, in the sidebar menu')
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−  
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−  #: date when the work was created
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−  created = db.DateTimeProperty(auto_now_add=True)
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−  
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−  #: date when the work was last modified
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−  modified = db.DateTimeProperty(auto_now=True)