CakeDC/ratings — Issue #6: Improper usage of helper in readme example
Author: tomasm-
Created: 2011-11-11 04:46:17+00:00
State: open

The docs mention:

echo $this->Rating->display(array(
'item'=>$id,
'type'=>'radio',
'stars'=>5,
'createForm'=>array('url'=>array($this->passedArgs, 'rate'=>$id, 'redirect'=>true))
));

The createForm line really should be:
'createForm'=>array('url'=>array_merge($this->passedArgs, array('rate'=>$id, 'redirect'=>true)))

If not, then I get an 'array to string conversion' in router.php