#!/usr/bin/python2.5

#

# Copyright 2009 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.

"""ProjectSurveyRecord allows linking two result sets by StudentProject.

"""

__authors__ = [

  '"Daniel Diniz" <ajaksu@gmail.com>',

  '"Lennard de Rijk" <ljvderijk@gmail.com>',

]

from google.appengine.ext import db

from soc.models.organization import Organization

from soc.models.survey_record import SurveyRecord

from soc.models.project_survey import ProjectSurvey

import soc.models.student_project

class ProjectSurveyRecord(SurveyRecord):

  """Record linked to a Project, enabling to store which Projects had their

  Survey done.

  """

  #: Reference to the Project that this record belongs to.

  project = db.ReferenceProperty(

      reference_class=soc.models.student_project.StudentProject,

      required=True, collection_name="survey_records")

  #: A many:1 relationship associating ProjectSurveyRecords 

  #: with specific Organization. The back-reference in the 

  #: Organization model is a Query named 'survey_records'.

  org = db.ReferenceProperty(

      reference_class=Organization, 

      required=False, collection_name='survey_records')