#!/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.

"""Views for Models with a "presence" on a Melange site.

"""

__authors__ = [

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

  ]

from google.appengine.ext import db

from django import forms

from django.utils.translation import ugettext_lazy

from soc.logic import cleaning

from soc.logic import dicts

from soc.logic import validate

from soc.logic.models import document as document_logic

from soc.views import helper

from soc.views.helper import access

from soc.views.helper import redirects

from soc.views.models import base

import soc.models.presence

import soc.logic.models.presence

import soc.logic.dicts

import soc.views.helper

import soc.views.helper.widgets

class View(base.View):

  """View methods for the Presence model.

  """

  def __init__(self, params=None):

    """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['extra_dynaexclude'] = ['home', 'tos']

    new_params['create_extra_dynafields'] = {

        # override some editors

        'home_link_id': forms.CharField(required=False,

            label=ugettext_lazy('Home page Document link ID'),

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

        'tos_link_id': forms.CharField(required=False,

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

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

        # add cleaning of the link id and feed url

        'clean_link_id': cleaning.clean_link_id,

        'clean_feed_url': cleaning.clean_feed_url,

        }

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

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

  def _public(self, request, entity, context):

    """See base.View._public().

    """

    if not entity:

      return

    try:

      home_doc = entity.home

    except db.Error:

      home_doc = None

    if home_doc:

      home_doc.content = helper.templates.unescape(home_doc.content)

      context['home_document'] = home_doc

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

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

    """

    try:

      if entity.home:

        form.fields['home_link_id'].initial = entity.home.link_id

    except db.Error:

      pass

    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().

    """

    key_fields = self._logic.getKeyFieldsFromDict(fields)

    scope_path = self._logic.getKeyNameForFields(key_fields)

    home_link_id = fields['home_link_id']

    # TODO notify the user if home_doc is not found

    home_doc = document_logic.logic.getFromFields(

      scope_path=scope_path, link_id=home_link_id)

    fields['home'] = home_doc

    tos_link_id = fields['tos_link_id']

    # TODO notify the user if tos_doc is not found

    tos_doc = document_logic.logic.getFromFields(

      scope_path=scope_path, link_id=tos_link_id)

    fields['tos'] = tos_doc

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