removed Model::order() to SqlModel

model/Model.php

@@ -152,15 +152,6 @@ abstract class Model
     abstract public function delete($id);
 
     /**
-     * Creates order sql string
-     *
-     * @param array $params
-     * @param array $sortable
-     * @return string
-     */
-    abstract  protected function order($params, $sortable = array('id'));
-
-    /**
      * @param string $sql
      * @param array $params
      * @param string $field