DMZ 1.7.1 (DataMapper OverZealous Edition)

[eluser]ronnie_nsu[/eluser]
I have these two dmz models...

Code:

class cart_m_cart extends a_base_model_datamapper {

    public function __construct($id=null) {
        $this->table = 'carts';
        $this->has_many = array(
        );
        $this->has_one = array(
        );

        $this->has_many['item_m_cart'] = array(
            'class' => 'item_m_cart',
            'join_other_as' => 'item',
            'join_self_as' => 'cart'
        );
        parent::__construct($id);
    }
}

class item_m_cart extends a_base_model_datamapper {

Code:

public function __construct($id=null) {
        $this->table = 'cart_items';
        $this->has_many = array(
        );
        $this->has_one = array(
        );

        $this->has_one['cart_m_cart'] = array(
            'class' => 'cart_m_cart',
            'join_other_as' => 'cart',
            'join_self_as' => 'item'
        );
        parent::__construct($id);
    }
}

i am trying to add an item in the cart..but it doesnt seem to work..help please

Code:

$c = new cart_m_cart();
        $c->user_id = 2;
        $c->site_id = 2;
        $c->get();

        $ci = new item_m_cart();      
        $ci->product_id = 1;
        $ci->qty = 5;
      
        
        $c->save($ci);