Adds to Melange a tags framework based on taggable-mixin.
The taggable-mixin allowed only tag per Datastore model. This is extended
framework allows any arbitrary number of tags per Datastore model. Also,
now one can define different models for different Tag types which are all
inherited from the base Tag model provided by taggable-mixin.
The GHOPTask model makes use of 2 tags per model, one for difficulty and the
other for task_type, both using the tags framework.
Reviewed by: Paweł Sołyga
#!/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 Task Model."""
__authors__ = [
'"Todd Larsen" <tlarsen@google.com>',
'"Sverre Rabbelier" <sverre@rabbelier.nl>',
]
from google.appengine.ext import db
import soc.models.linkable
import soc.models.proposal
class Task(soc.models.linkable.Linkable):
"""Model of a Task, which is a Proposal to be completed by Contributors.
A Task brings along a Proposal that was used to initiate the Task. A Task
may have a unique collection of Reviews, in addition to those attached to
the original Proposal.
A Task entity participates in the following relationships implemented
as a db.ReferenceProperty elsewhere in another db.Model:
contributors) a required many:many relationship associating all of
the Contributors to a Task to the specific Task. See the
TasksContributors model for details.
"""
#: A required many:1 relationship with the Proposal on which the
#: Task is based. A Task may be based on only a single Proposal,
#: but a Proposal can be the foundation for multiple Tasks. The
#: back-reference in the Proposal model is a Query named 'tasks'.
proposal = db.ReferenceProperty(reference_class=soc.models.proposal.Proposal,
required=True,
collection_name="tasks")