[extensions-web] Make undo work with multiple versions

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

commit d6e67956d54d1bd1f84c74e6dc9f1f2f3f3c4369
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Nov 24 00:01:37 2011 -0500

    Make undo work with multiple versions
    
    We accidentally re-installed the version with the PK of the extension. We
    probably haven't noticed this before because the version and extension PKs
    have been the same

 sweettooth/extensions/views.py     |   12 +++++++++---
 sweettooth/static/js/extensions.js |    3 ++-
 2 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/sweettooth/extensions/views.py b/sweettooth/extensions/views.py
index 6bcda27..a3e70ad 100644
--- a/sweettooth/extensions/views.py
+++ b/sweettooth/extensions/views.py
@@ -204,8 +204,7 @@ def ajax_upload_icon_view(request, obj):
     return obj.icon.url
 
 def ajax_details(extension):
-    return dict(pk = extension.pk,
-                uuid = extension.uuid,
+    return dict(uuid = extension.uuid,
                 name = extension.name,
                 creator = extension.creator.username,
                 link = reverse('extensions-detail', kwargs=dict(pk=extension.pk)),
@@ -214,12 +213,19 @@ def ajax_details(extension):
 @ajax_view
 def ajax_details_view(request):
     uuid = request.GET.get('uuid', None)
+    version_tag = request.GET.get('version_tag', None)
 
     if uuid is None:
         raise Http404()
 
     extension = get_object_or_404(models.Extension, uuid=uuid)
-    return ajax_details(extension)
+    details = ajax_details(extension)
+
+    if version_tag is not None:
+        version = extension.versions.get(version=version_tag)
+        details['pk'] = version.pk
+
+    return details
 
 @ajax_view
 def ajax_query_view(request):
diff --git a/sweettooth/static/js/extensions.js b/sweettooth/static/js/extensions.js
index 836960b..ae14d4e 100644
--- a/sweettooth/static/js/extensions.js
+++ b/sweettooth/static/js/extensions.js
@@ -201,7 +201,8 @@ function($, messages, dbusProxy) {
                         $.ajax({
                             url: "/ajax/detail/",
                             dataType: "json",
-                            data: { uuid: uuid },
+                            data: { uuid: extension.version,
+                                    version_tag: extension.version_tag },
                             type: "GET",
                         }).done(function(result) {
                             $elem.