[eluser]OES[/eluser]
In Model just place your query in an if like.
Model
Code:
if(!$this->db->update('table_name', $data)):
return FALSE;
endif;
Controller
Code:
if(!$this->model_name->update_function($data)):
// it failed
else:
// It passed do something else.
endif;
Hope this helps
Good Luck