[extensions-web] Add secret list view sorting capability

[Jasper St. Pierre <jstpierre src gnome org>]

commit 11971fd27d03c4c78ba7189e910b534d867ad000
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Dec 5 22:26:29 2011 -0500

    Add secret list view sorting capability

 sweettooth/extensions/urls.py  |    6 +-----
 sweettooth/extensions/views.py |   31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 5 deletions(-)
---
diff --git a/sweettooth/extensions/urls.py b/sweettooth/extensions/urls.py
index 46ec7db..ff55693 100644
--- a/sweettooth/extensions/urls.py
+++ b/sweettooth/extensions/urls.py
@@ -35,11 +35,7 @@ shell_patterns = patterns('',
 )
 
 urlpatterns = patterns('',
-    url(r'^$', object_list, dict(queryset=models.Extension.objects.visible().order_by('name'),
-                                 paginate_by=10,
-                                 template_object_name='extension',
-                                 template_name='extensions/list.html'),
-        name='extensions-index'),
+    url(r'^$', views.extensions_list, name='extensions-index'),
 
     url(r'^about/$', direct_to_template, dict(template='extensions/about.html'), name='extensions-about'),
 
diff --git a/sweettooth/extensions/views.py b/sweettooth/extensions/views.py
index cccd50d..e4b5de3 100644
--- a/sweettooth/extensions/views.py
+++ b/sweettooth/extensions/views.py
@@ -1,4 +1,5 @@
 
+from django.core.paginator import Paginator, InvalidPage
 from django.core.urlresolvers import reverse
 from django.contrib.auth.decorators import login_required
 from django.contrib import messages
@@ -89,6 +90,36 @@ def build_shell_version_map(versions):
 
     return shell_version_map
 
+def extensions_list(request):
+    queryset = models.Extension.objects.visible()
+    if request.GET.get('sort', '') == 'recent':
+        queryset = queryset.order_by('-pk')
+    else:
+        queryset = queryset.order_by('name')
+
+    paginator = Paginator(queryset, 10)
+    if not page:
+        page = request.GET.get('page', 1)
+    try:
+        page_number = int(page)
+    except ValueError:
+        if page == 'last':
+            page_number = paginator.num_pages
+        else:
+            # Page is not 'last', nor can it be converted to an int.
+            raise Http404()
+    try:
+        page_obj = paginator.page(page_number)
+    except InvalidPage:
+        raise Http404()
+
+    context = dict(paginator=paginator,
+                   page_obj=page_obj,
+                   is_paginated=page_obj.has_other_pages(),
+                   extension_list=page_obj.object_list)
+
+    return render(request, 'extensions/list.html', context)
+
 @model_view(models.Extension)
 def extension_view(request, obj, **kwargs):
     extension, versions = obj, obj.visible_versions