[ 'validations' => 'required|integer', 'fieldname' => 'project' ], 'external_id' =>[ 'validations' => 'required|integer', 'fieldname' => 'onderaannemer' ], 'reservationamount' => [ 'validations' => 'number', 'fieldname' => 'bedrag' ] ]; public function __construct() { parent::__construct(); $this->ci =& get_instance(); } }