#!/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.

"""Sponsor (Model) query functions.

"""

__authors__ = [

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

  ]

from soc.logic import key_name

from soc.logic.models import base

import soc.models.sponsor

class Logic(base.Logic):

  """Logic methods for the Sponsor model

  """

  def __init__(self):

    """Defines the name, key_name and model for this entity.

    """

    self._model = soc.models.sponsor.Sponsor

    self._skip_properties = []

  def getKeyValues(self, entity):

    """See base.Logic.getKeyNameValues.

    """

    return [entity.link_name]

  def getKeyValuesFromFields(self, fields):

    """See base.Logic.getKeyValuesFromFields.

    """

    return [fields['link_name']] 

  def getKeyFieldNames(self):

    """See base.Logic.getKeyFieldNames

    """

    return ['link_name']

  def isDeletable(self, entity):

    """Returns whether the specified Sponsor entity can be deleted.

    Args:

      entity: an existing Sponsor entity in datastore

    """

    # TODO(pawel.solyga): Check if Sponsor can be deleted (no Hosts, Programs)

    return True

logic = Logic()