[CakePHP] Call another Controller's method from a Controller

Use RequestAction() carefully:

$itemD = $this->requestAction(array('controller'=>'items', 'action'=>'findByItId', 'it_id' => $item['it_id']));


http://stackoverflow.com/questions/13947393/cakephp-importing-one-controller-inside-another-controller



If models have been linked (using hasMany, belongsTo, etc.) :

$supplier=$this->Delivery->Supplier->findBySpId($sp_id);