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#!/usr/bin/env 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
# 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 Request Model."""
from google.appengine.ext import db
from django.utils.translation import ugettext
from soc.models.organization import Organization
from soc.models.user import User
'pending': 'This request has had no reply yet.',
'accepted': 'The request has been accepted.',
'invalid': 'The request has been marked as invalid by the system.',
'rejected': 'The request has been rejected.',
'withdrawn': 'The request has been withdrawn by the sender.',
'mentor': 'Mentor',
'org_admin': 'Organization Admin'
INVITATION_TYPE = 'Invitation'
REQUEST_TYPE = 'Request'
class Request(db.Model):
"""A request is made to allow a person to create a new Role entity.
#: Type of the request:
#: - invitations are sent by organization admins to users
#: - requests are sent by wannabe mentors to organizations
type = db.StringProperty(
required=False, choices=[INVITATION_TYPE, REQUEST_TYPE])
#: The internal name of the role
role = db.StringProperty(required=True, choices=['mentor', 'org_admin'])
#: The user this request is from or this invitation is to
user = db.ReferenceProperty(
required=True, collection_name='requests',
#: The group this request is for
org = db.ReferenceProperty(
reference_class=Organization, required=True, collection_name='requests',
#: An optional message shown to the receiving end of this request
message = db.TextProperty(required=False, default='',
message.help_text = ugettext(
'This is an optional message shown to the receiver of this request.')
# property that determines the status of the request
# new : This is a new request which has yet to be responded
# accepted : This request has been handled either following a creation of
# the role entity,
# invalid : This request has been invalidated by the system.
# rejected : This request has been rejected by the group.
# withdrawn : This request has been withdrawn by the sender
status = db.StringProperty(required=True, default='pending',
choices=['pending', 'accepted', 'invalid', 'rejected', 'withdrawn'])
status.help_text = ugettext('The status of the request.')
#: DateTime when the request was created
created_on = db.DateTimeProperty(auto_now_add=True)
#: DateTime when this request was last modified
modified_on = db.DateTimeProperty(auto_now=True)
def statusMessage(self):
"""Returns a status message for the current request status.
return STATUS_MESSAGES.get(self.status)
def roleName(self):
"""Return a role name in user friendly format.
return ROLE_NAMES.get(self.role)
def keyName(self):
"""Returns a string which uniquely represents the entity.
return '/'.join([self.parent_key().name(), str(self.key().id())])