app/soc/models/task.py
author Daniel Bentley <dbentley@google.com>
Wed, 01 Apr 2009 10:24:26 +0000
changeset 2048 236f37777764
parent 1308 35b75ffcbb37
permissions -rw-r--r--
A new model for seeding the database that makes it easier to seed many entities. new_seed_many is a function that seeds in a different way. Instead of using redirects, it figures out what the high-water mark of seeding is and proceeds from there. This is obviously a half-way step. I've talked about it with Sverre; I think I've mentioned it to others. If we like it, I volunteer to convert everything to this model (I think there will be savings and simplification when we're all the way). If we don't like it, I'll back out this code. But I'll also be sad, because this makes it a lot easier to add many entities (which I care about because I'm trying to fix list view for that many entities). Patch by: Dan Bentley

#!/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")