- batch manager was not calling invalidate_user_cache

- batch manager can delete photos added by ftp
- call sync_users on admin page less often (too many sql queries)

git-svn-id: http://piwigo.org/svn/trunk@8756 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/batch_manager_global.php

@@ -412,14 +412,15 @@ if (count($page['cat_elements_id']) > 0)
 {
   $query = '
 SELECT
-    COUNT(*)
+    id
   FROM '.IMAGES_TABLE.'
   WHERE id IN ('.implode(',', $page['cat_elements_id']).')
-    AND storage_category_id IS NULL
+    AND file NOT LIKE \'http%\'
+  LIMIT 1
 ;';
-  list($counter) = pwg_db_fetch_row(pwg_query($query));
+  ;
 
-  if ($counter > 0)
+  if ( pwg_db_fetch_row(pwg_query($query)) )
   {
     $template->assign('show_delete_form', true);
   }