app/soc/views/models/host.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Sat, 22 Nov 2008 22:44:02 +0000
changeset 568 6713617751b4
parent 560 a32be584ee04
child 569 96d9655a7538
permissions -rw-r--r--
Remove inheritance from PolyModel in Answer and Linkable model. Replace PolyModel inheritance with base.ModelWithFieldAttributes. A little explanation why we are trying to get rid of PolyModel. We decided to use PolyModel in order to get support for model inheritance in App Engine, however as we know this was a hacky workaround which added inheritance_line property to each model. Recent commits which added Linkable model caused our data viewer in admin console to show only one model "Linkable" since all of the classes inherited from it. Basically datastore viewer was useless plus we had a really big mess in datastore since everything was of one kind (Linkable). It's almost like creating one huge table in SQL database. Upcoming commits will eliminate all usage of PolyModel and finally remove PolyModel from our repository. We are still using inheritance however this doesn't modify how models are saved in data store so basically it's like copy and paste of properties from parent models. Patch by: Pawel Solyga, Sverre Rabbelier

#!/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 Host profiles.
"""

__authors__ = [
    '"Sverre Rabbelier" <sverre@rabbelier.nl>',
  ]


from django.utils.translation import ugettext_lazy

from soc.logic import dicts
from soc.views import helper
from soc.views.models import base
from soc.views.models import role

import soc.models.host
import soc.logic.models.host
import soc.views.helper
import soc.views.models.sponsor


class CreateForm(helper.forms.BaseForm):
  """Django form displayed when creating a Host.
  """

  class Meta:
    """Inner Meta class that defines some behavior for the form.
    """

    #: db.Model subclass for which the form will gather information
    model = soc.models.host.Host

    #: list of model fields which will *not* be gathered by the form
    exclude = ['inheritance_line', 'scope']

  def clean_empty(self, field):
    data = self.cleaned_data.get(field)
    if not data or data == u'':
      return None

    return data

  def clean_home_page(self):
    return self.clean_empty('home_page')

  def clean_blog(self):
    return self.clean_empty('blog')

  def clean_photo_url(self):
    return self.clean_empty('photo_url')


class EditForm(CreateForm):
  """Django form displayed when editing a Host.
  """

  pass

class View(role.RoleView):
  """View methods for the Host model.
  """

  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
    """

    self._logic = soc.logic.models.host.logic

    params = {}

    params['logic'] = soc.logic.models.host.logic
    params['group_view'] = soc.views.models.sponsor.view
    params['invite_filter'] = {'group_ln': 'link_id'}

    params['name'] = "Host"
    params['name_short'] = "Host"
    params['name_plural'] = "Hosts"
    params['url_name'] = "host"
    params['module_name'] = "host"

    params['edit_form'] = EditForm
    params['create_form'] = CreateForm

    params = dicts.merge(original_params, params)

    role.RoleView.__init__(self, original_params=params)


view = View()

create = view.create
delete = view.delete
edit = view.edit
list = view.list
public = view.public
invite = view.invite