1 #!/usr/bin/python2.5

     2 #

     3 # Copyright 2008 the Melange authors.

     4 #

     5 # Licensed under the Apache License, Version 2.0 (the "License");

     6 # you may not use this file except in compliance with the License.

     7 # You may obtain a copy of the License at

     8 # 

     9 #   http://www.apache.org/licenses/LICENSE-2.0

    10 # 

    11 # Unless required by applicable law or agreed to in writing, software

    12 # distributed under the License is distributed on an "AS IS" BASIS,

    13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    14 # See the License for the specific language governing permissions and

    15 # limitations under the License.

    16 

    17 """This module contains the Task Model."""

    18 

    19 __authors__ = [

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

    21   '"Sverre Rabbelier" <sverre@rabbelier.nl>',

    22 ]

    23 

    24 from google.appengine.ext import db

    25 

    26 from soc import models

    27 import soc.models.proposal

    28 

    29 

    30 class Task(db.Model):

    31   """Model of a Task, which is a Proposal to be completed by Contributors.

    32 

    33   A Task brings along a Proposal that was used to initiate the Task.  A Task

    34   may have a unique collection of Reviews, in addition to those attached to

    35   the original Proposal.

    36 

    37   A Task entity participates in the following relationships implemented

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

    39 

    40    contributors)  a required many:many relationship associating all of

    41      the Contributors to a Task to the specific Task.  See the

    42      TasksContributors model for details.

    43   """

    44  

    45   #: A required many:1 relationship with the Proposal on which the

    46   #: Task is based.  A Task may be based on only a single Proposal, 

    47   #: but a Proposal can be the foundation for multiple Tasks. The

    48   #: back-reference in the Proposal model is a Query named 'tasks'.  

    49   proposal = db.ReferenceProperty(reference_class=models.proposal.Proposal,

    50                                   required=True,

    51 				  collection_name="tasks")

    52