admin: date hierarchy filter

diff --git a/ipf/orm/expression/mysql.php b/ipf/orm/expression/mysql.php
index 8730023322fc22cbfd14f55eadc7aa266a7ca2a8..9b38c652cb9572d060970e5dc8e7cc734f51886b 100644 (file)
--- a/ipf/orm/expression/mysql.php
+++ b/ipf/orm/expression/mysql.php
@@ -61,9 +61,15 @@ class IPF_ORM_Expression_Mysql extends IPF_ORM_Expression_Driver
         return 'MONTH(' .  $column . ')';
     }
 
+    public function monthname($column)
+    {
+        $column = $this->getIdentifier($column);
+        return 'MONTHNAME(' .  $column . ')';
+    }
+
     public function day($column)
     {
         $column = $this->getIdentifier($column);
         return 'DAY(' .  $column . ')';
     }
-}
\ No newline at end of file
+}