--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/soc/views/models/presence.py	Fri Nov 21 10:46:15 2008 +0000
@@ -0,0 +1,188 @@
+#!/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 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 validate
+from soc.logic.models import document as document_logic
+from soc.views import helper
+from soc.views.helper import widgets
+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 SettingsValidationForm(helper.forms.BaseForm):
+  """Django form displayed when creating or editing Settings.
+  
+  This form includes validation functions for Settings fields.
+  """
+
+    # TODO(tlarsen): scope_path will be a hard-coded read-only
+    #   field for some (most?) User Roles
+  doc_scope_path = forms.CharField(required=False,
+      label=ugettext_lazy('Document scope path'),
+      help_text=soc.models.work.Work.scope_path.help_text)
+
+  # TODO(tlarsen): actually, using these two text fields to specify
+  #   the Document is pretty cheesy; this needs to be some much better
+  #   Role-scoped Document selector that we don't have yet
+  doc_link_id = forms.CharField(required=False,
+      label=ugettext_lazy('Document link ID'),
+      help_text=soc.models.work.Work.link_id.help_text)
+
+  def clean_feed_url(self):
+    feed_url = self.cleaned_data.get('feed_url')
+
+    if feed_url == '':
+      # feed url not supplied (which is OK), so do not try to validate it
+      return None
+    
+    if not validate.isFeedURLValid(feed_url):
+      raise forms.ValidationError('This URL is not a valid ATOM or RSS feed.')
+
+    return feed_url
+
+
+class CreateForm(SettingsValidationForm):
+  """Django form displayed when creating or editing Settings.
+  """
+
+  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.presence.Presence
+
+    #: list of model fields which will *not* be gathered by the form
+    exclude = ['inheritance_line', 'home']
+
+
+class EditForm(CreateForm):
+  """Django form displayed a Document is edited.
+  """
+
+  pass
+
+
+class View(base.View):
+  """View methods for the Document 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
+    """
+
+    params = {}
+
+    params['name'] = "Home Settings"
+    params['name_short'] = "Home Settings"
+    params['name_plural'] = "Home Settings"
+    params['url_name'] = "home/settings"
+    params['module_name'] = "presence"
+
+    params['edit_form'] = EditForm
+    params['create_form'] = CreateForm
+
+    # TODO(tlarsen) Add support for Django style template lookup
+    params['edit_template'] = 'soc/models/edit.html'
+    params['public_template'] = 'soc/presence/public.html'
+    params['list_template'] = 'soc/models/list.html'
+
+    params['lists_template'] = {
+      'list_main': 'soc/list/list_main.html',
+      'list_pagination': 'soc/list/list_pagination.html',
+      'list_row': 'soc/presence/list/home_row.html',
+      'list_heading': 'soc/presence/list/home_heading.html',
+    }
+
+    params['delete_redirect'] = '/' + params['url_name'] + '/list'
+
+    params = dicts.merge(original_params, params)
+
+    base.View.__init__(self, params=params)
+
+    self._logic = soc.logic.models.presence.logic
+
+  def _public(self, request, entity, context):
+    """
+    """
+
+    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['doc_scope_path'].initial = entity.home.scope_path
+        form.fields['doc_link_id'].initial = entity.home.link_id
+    except db.Error:
+      pass
+
+  def _editPost(self, request, entity, fields):
+    """See base.View._editPost().
+    """
+
+    doc_scope_path = fields['doc_scope_path']
+    doc_link_id = fields['doc_link_id']
+
+    # TODO notify the user if home_doc is not found
+    home_doc = document_logic.logic.getFromFields(
+    scope_path=doc_scope_path, link_id=doc_link_id)
+
+    fields['home'] = home_doc
+
+
+view = View()
+
+create = view.create
+edit = view.edit
+delete = view.delete
+list = view.list
+public = view.public