#!/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 Programs.

"""

__authors__ = [

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

  ]

from google.appengine.api import users

from django import forms

from django.utils.translation import ugettext_lazy

from soc.logic import dicts

from soc.logic import cleaning

from soc.logic.models import sponsor as sponsor_logic

from soc.views.helper import redirects

from soc.views.models import base

from soc.views.models import sponsor as sponsor_view

from soc.views import helper

import soc.logic.models.program

class View(base.View):

  """View methods for the Sponsor model.

  """

  DEF_CREATE_INSTRUCTION_MSG_FMT = ugettext_lazy(

      'Please use this form to select a Sponsor for the new Program')

  def __init__(self, original_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:

      original_params: a dict with params for this View 

    """    

    params = {}

    params['logic'] = soc.logic.models.program.logic

    params['name'] = "Program"

    params['name_short'] = "Program"

    params['name_plural'] = "Programs"

    params['url_name'] = "program"

    params['module_name'] = "program"

    params['extra_dynaexclude'] = ['home']

    params['create_extra_dynafields'] = {

        'scope_path': forms.CharField(widget=forms.HiddenInput,

                                   required=False),

        }

    params = dicts.merge(original_params, params)

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

  def create(self, request, page_name=None, params=None, **kwargs):

    """Specialized create view to enforce needing a scope_path

    This view simply gives control to the base.View.create if the

    scope_path is specified in kwargs. If it is not present, it

    instead displays the result of self.selectSponsor. Refer to the

    respective docstrings on what they do.

    Args: 

      see base.View.create

    """

    if 'scope_path' in kwargs:

      return super(View, self).create(request, page_name=page_name,

          params=params, **kwargs)

    params = dicts.merge(params, self._params)

    return self.selectSponsor(request, page_name, params)

  def selectSponsor(self, request, page_name, params):

    """Displays a list page allowing the user to select a Sponsor

    After having selected the Sponsor, the user is redirected to the

    'create a new program' page with the scope_path set appropriately.

    Params usage:

      The params dictionary is passed to getCreateProgramRedirect from

        the redirects module, please see the docstring for

        getCreateProgramRedirect on how it uses it.

      The params dictionary is also passed to getListContent from

        the helper.list module, please refer to its docstring also.

      The params dictionary is passed to self._list as well, refer

        to its docstring for details on how it uses it.

    Args:

      request: the standard Django HTTP request object

      page_name: the page name displayed in templates as page and header title

      params: a dict with params for this View

    """

    new_params = {}

    new_params['list_action'] = (redirects.getCreateProgramRedirect, params)

    new_params['list_description'] = \

        self.DEF_CREATE_INSTRUCTION_MSG_FMT % self._params

    new_params = dicts.merge(new_params, sponsor_view.view._params)

    params = dicts.merge(new_params, params)

    content = helper.lists.getListContent(request, params, sponsor_logic.logic)

    contents = [content]

    return self._list(request, params, contents, page_name)

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

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

    """

    # fill in the email field with the data from the entity

    form.fields['scope_path'].initial = entity.scope_path

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

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

    """

    sponsor = sponsor_logic.logic.getFromFields(link_id=fields['scope_path'])

    fields['scope'] = sponsor

  def getDjangoURLPatterns(self, params=None):

    """See base.View.getDjangoURLPatterns().

    """

    default_patterns = self._params['django_patterns_defaults']

    default_patterns += [

        (r'^%(url_name)s/create/(?P<scope_path>%(ulnp)s)$',

            'soc.views.models.%s.create', 'Create %(name_short)s')]

    params = {}

    params['django_patterns_defaults'] = default_patterns

    params = dicts.merge(params, self._params)

    patterns = super(View, self).getDjangoURLPatterns(params)

    return patterns

view = View()

create = view.create

delete = view.delete

edit = view.edit

list = view.list

public = view.public