<?php


interface App_ECommerce_Cart_ItemInterface
{

    /**
     * @return array [name => bool value, ...]
     */
    public static function getCartItemCapabilities();

    /**
     * Method should set primary key and init item object
     * @param array $data ['id' =>, 'cartId' =>, 'productId' =>, ...]
     *
     * @return mixed
     */
    public function setCartItemData(array $data);

    /**
     * Prepare item data (from db)
     * @return array
     */
    public function prepareCartItemData();

    public function beforeValidateCart();

    /**
     * @return bool
     */
    public function validateCartItem();

    public function completeItemList(array $itemList);

    public function afterCartItemRemove();

    public function getErrors();

    public function getData($field = null, $default = null);

}