#!/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.

"""SurveyRecord (Model) query functions.

"""

__authors__ = [

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

  ]

from soc.logic.models import expando_base

from soc.models.survey_record import SurveyRecord

from soc.models.grading_project_survey_record import GradingProjectSurveyRecord

from soc.models.project_survey_record import ProjectSurveyRecord

class Logic(expando_base.Logic):

  """Logic methods for listing results for Surveys.

  """

  def __init__(self, model=SurveyRecord,

               base_model=None, scope_logic=None):

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

    """

    super(Logic, self).__init__(model=model, base_model=base_model,

                                scope_logic=scope_logic, id_based=True)

  def updateOrCreateFromFields(self, entity, properties, clear_dynamic=False):

    """Create a new SurveyRecord, or update an existing one.

    params:

      entity: existing SurveyRecord, if one exists

      properties: the properties to be set

      clear_dynamic: iff True removes all dynamic properties before updating

    """

    if entity:

      if clear_dynamic:

        # remove all dynamic properties before we update

        for prop in entity.dynamic_properties():

          delattr(entity, prop)

      self.updateEntityProperties(entity, properties)

    else:

      entity = super(Logic, self).updateOrCreateFromFields(properties)

    return entity

class ProjectLogic(Logic):

  """Logic class for ProjectSurveyRecord.

  """

  def __init__(self, model=ProjectSurveyRecord,

               base_model=SurveyRecord, scope_logic=None):

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

    """

    super(ProjectLogic, self).__init__(model=model, base_model=base_model,

                                       scope_logic=scope_logic)

class GradingProjectLogic(ProjectLogic):

  """Logic class for GradingProjectSurveyRecord.

  """

  def __init__(self, model=GradingProjectSurveyRecord,

               base_model=ProjectSurveyRecord, scope_logic=None):

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

    """

    super(GradingProjectLogic, self).__init__(model=model,

                                              base_model=base_model,

                                              scope_logic=scope_logic)

logic = Logic()

project_logic = ProjectLogic()

grading_logic = GradingProjectLogic()