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# 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
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.
"""This module contains the Survey models.
Survey describes meta-information and permissions.
SurveyContent contains the fields (questions) and their metadata.
from google.appengine.ext import db
from django.utils.translation import ugettext
from soc.models.program import Program
from soc.models.user import User
class Survey(db.Model):
"""Model of a Survey.
This model describes meta-information and permissions.
The actual questions of the survey are contained
in the SurveyContent entity.
# TODO(Madhu): Conversion script for existing surveys to convert scope
# to program
#: Required N:1 relationship indicating the program to which the survey
#: belongs to
program = db.ReferenceProperty(reference_class=Program, required=False,
# TODO(Madhu): Get rid of this property once the conversion is done
scope = db.ReferenceProperty(required=False,
collection_name='links', verbose_name=ugettext('Link Scope'))
scope.help_text = ugettext(
'Reference to another Linkable entity that defines the "scope" of'
' this Linkable entity.')
#: Required field indicating the "title" of the work, which may have
#: different uses depending on the specific type of the work. Works
#: can be indexed, filtered, and sorted by 'title'.
title = db.StringProperty(required=True,
title.help_text = ugettext(
'title of the document; often used in the window title')
#: short name used in places such as the sidebar menu and breadcrumb trail
#: (optional: title will be used if short_name is not present)
short_name = db.StringProperty(verbose_name=ugettext('Short name'))
short_name.help_text = ugettext(
'short name used, for example, in the sidebar menu')
#: Required db.TextProperty containing the contents of the Work.
#: The content is only to be displayed to Persons in Roles eligible to
#: view them (which may be anyone, for example, with the site front page).
content = db.TextProperty(verbose_name=ugettext('Content'))
#: date when the work was created
created = db.DateTimeProperty(auto_now_add=True)
# TODO(Madhu): Conversion from author to created_by
#: Required 1:1 relationship indicating the User who initially created the
#: survey (this relationship is needed to keep track of lifetime document
#: creation limits, used to prevent spamming, etc.).
created_by = db.ReferenceProperty(reference_class=User, required=False,
verbose_name=ugettext('Created by'))
# TODO(Madhu): Remove after conversion
author = db.ReferenceProperty(reference_class=User, required=False,
verbose_name=ugettext('Created by'))
#: date when the work was last modified
modified = db.DateTimeProperty(auto_now=True)
# indicating wich user last modified the work. Used in displaying Work
modified_by = db.ReferenceProperty(reference_class=User, required=True,
verbose_name=ugettext('Modified by'))
#: Date at which the survey becomes available for taking.
survey_start = db.DateTimeProperty(
verbose_name=ugettext('Evaluation start date and time'))
survey_start.help_text = ugettext(
'Indicates a date before which this evaluation'
' cannot be taken or displayed.')
#: Deadline for taking survey.
survey_end = db.DateTimeProperty(
verbose_name=ugettext('Evaluation end date and time'))
survey_end.help_text = ugettext(
'Indicates a date after which this evaluation'
' cannot be taken.')
#: Stores the schema for the survey form
schema = db.TextProperty(required=False)