#!/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 Notification Model.

"""

__authors__ = [

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

]

from google.appengine.ext import db

from django.utils.translation import ugettext_lazy

import soc.models.linkable

import soc.models.user

class Notification(soc.models.linkable.Linkable):

  """Model of a Notification.

  """

  #: a reference to the user this Notification is from

  #: this is a non-required property, None will indicate an Anonymous Admin

  from_user = db.ReferenceProperty(reference_class=soc.models.user.User,

      required=False,

      collection_name="sent_notifications",

  subject = db.StringProperty(required=True,

      verbose_name=ugettext_lazy('Subject'))

  #: the message that is contained within this Notification

  message = db.TextProperty(required=True,

      verbose_name=ugettext_lazy('Message'))

  #: date and time on which this Notification was created

  created_on = db.DateTimeProperty(auto_now_add=True,

      verbose_name=ugettext_lazy('Created On'))

  #: boolean property that marks if the notification is unread

  unread = db.BooleanProperty(default=True,

      verbose_name=ugettext_lazy('Unread'))