[FIX] Can't add to dashboard a view that includes a 'group_by'

lp bug: https://launchpad.net/bugs/948097 fixed

bzr revid: fme@openerp.com-20120306205955-zqgtbgtz1gtix4w9

addons/web/controllers/main.py

@@ -1359,7 +1359,7 @@ class SearchView(View):
                 if board and 'arch' in board:
                     xml = ElementTree.fromstring(board['arch'])
                     column = xml.find('./board/column')
-                    if column:
+                    if column is not None:
                         new_action = ElementTree.Element('action', {
                                 'name' : str(action_id),
                                 'string' : name,

addons/web/static/src/js/views.js

@@ -408,6 +408,9 @@ session.web.ViewManager =  session.web.OldWidget.extend(/** @lends session.web.V
             var groupby = results.group_by.length
                         ? results.group_by
                         : action_context.group_by;
+            if (_.isString(groupby)) {
+                groupby = [groupby];
+            }
             controller.do_search(results.domain, results.context, groupby || []);
         });
     },