Feature 511 : fix problems with calendar functions

add pwg_db_concat() function

git-svn-id: http://piwigo.org/svn/trunk@4833 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/include/functions_permalinks.php

@@ -192,8 +192,8 @@ DELETE FROM '.OLD_PERMALINKS_TABLE.'
   $query = '
 UPDATE '.CATEGORIES_TABLE.'
   SET permalink="'.$permalink.'"
-  WHERE id='.$cat_id.'
-  LIMIT 1';
+  WHERE id='.$cat_id;
+  //  LIMIT 1';
   pwg_query($query);
 
   unset( $cache['cat_names'] ); //force regeneration