Switch over the user gallery to the active_user_from_url decorator

This switches the user gallery page over to use the new decorator, and
cleans up the queries to be in proper sqlalchemy format rather than the
old mongo format.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>

mediagoblin/user_pages/views.py

@@ -20,6 +20,7 @@ import datetime
 
 from mediagoblin import messages, mg_globals
 from mediagoblin.db.util import DESCENDING, ObjectId
+from mediagoblin.db.sql.models import MediaEntry, Collection, CollectionItem
 from mediagoblin.tools.response import render_to_response, render_404, redirect
 from mediagoblin.tools.translate import pass_to_ugettext as _
 from mediagoblin.tools.pagination import Pagination
@@ -29,7 +30,7 @@ from mediagoblin.user_pages.lib import send_comment_email
 
 from mediagoblin.decorators import (uses_pagination, get_user_media_entry,
     require_active_login, user_may_delete_media, user_may_alter_collection,
-    get_user_collection, get_user_collection_item)
+    get_user_collection, get_user_collection_item, active_user_from_url)
 
 from werkzeug.contrib.atom import AtomFeed
 
@@ -75,30 +76,26 @@ def user_home(request, page):
          'pagination': pagination})
 
 
+@active_user_from_url
 @uses_pagination
-def user_gallery(request, page):
+def user_gallery(request, page, url_user=None):
     """'Gallery' of a User()"""
-    user = request.db.User.find_one({
-            'username': request.matchdict['user'],
-            'status': u'active'})
-    if not user:
-        return render_404(request)
-
-    cursor = request.db.MediaEntry.find(
-        {'uploader': user._id,
-         'state': u'processed'}).sort('created', DESCENDING)
-
+    cursor = MediaEntry.query.filter_by(
+        uploader=url_user.id,
+        state=u'processed').order_by(MediaEntry.created.desc())
+    # Paginate gallery
     pagination = Pagination(page, cursor)
     media_entries = pagination()
 
     #if no data is available, return NotFound
+    # TODO: Should we really also return 404 for empty galleries?
     if media_entries == None:
         return render_404(request)
 
     return render_to_response(
         request,
         'mediagoblin/user_pages/gallery.html',
-        {'user': user,
+        {'user': url_user,
          'media_entries': media_entries,
          'pagination': pagination})