#!/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.

"""Views for PresenceWithToS.

"""

__authors__ = [

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

  ]

from google.appengine.ext import db

from django import forms

from django.utils.translation import ugettext

from soc.logic import dicts

from soc.logic.models import document as document_logic

from soc.views.models import presence

from soc.views.helper import widgets

import soc.logic.models.presence_with_tos

import soc.models.work

class View(presence.View):

  """View methods for the PresenceWithToS model.

  """

  def __init__(self, params):

    """Defines the fields and methods required for the base View class

    to provide the user with list, public, create, edit and delete views.

    Params:

      params: a dict with params for this View

    """

    new_params = {}

    new_params['logic'] = soc.logic.models.presence_with_tos.logic

    new_params['extra_dynaexclude'] = ['tos']

    new_params['edit_extra_dynafields'] = {

        'tos_link_id': widgets.ReferenceField(

            reference_url='document', filter=['scope_path'], required=False,

            filter_fields={'prefix': params['document_prefix']},

            label=ugettext('Terms of Service Document link ID'),

            help_text=soc.models.work.Work.link_id.help_text),

        }

    params = dicts.merge(params, new_params, sub_merge=True)

    super(View, self).__init__(params=params)

  def _editGet(self, request, entity, form):

    """See base.View._editGet().

    """

    try:

      if entity.tos:

        form.fields['tos_link_id'].initial = entity.tos.link_id

    except db.Error:

      pass

    super(View, self)._editGet(request, entity, form)

  def _editPost(self, request, entity, fields):

    """See base.View._editPost().

    """

    if 'tos_link_id' not in fields:

      return super(View, self)._editPost(request, entity, fields)

    scope_path = self._logic.getKeyNameFromFields(fields)

    key_fields = {

        'scope_path': scope_path,

        'link_id': fields['tos_link_id'],

        'prefix': self._params['document_prefix'],

        }

    # TODO notify the user if tos_doc is not found

    tos_doc = document_logic.logic.getFromKeyFields(key_fields)

    fields['tos'] = tos_doc

    super(View, self)._editPost(request, entity, fields)