/app/code/core/Mage/Checkout/Model/Cart/Product/Api.php

<?php

/**

 * Magento

 *

 * NOTICE OF LICENSE

 *

 * This source file is subject to the Open Software License (OSL 3.0)

 * that is bundled with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://opensource.org/licenses/osl-3.0.php

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@magentocommerce.com so we can send you a copy immediately.

 *

 * DISCLAIMER

 *

 * Do not edit or add to this file if you wish to upgrade Magento to newer

 * versions in the future. If you wish to customize Magento for your

 * needs please refer to http://www.magentocommerce.com for more information.

 *

 * @category    Mage

 * @package     Mage_Checkout

 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)

 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)

 */



/**

 * Shopping cart api for product

 *

 * @category    Mage

 * @package     Mage_Checkout

 * @author      Magento Core Team <core@magentocommerce.com>

 */



class Mage_Checkout_Model_Cart_Product_Api extends Mage_Checkout_Model_Api_Resource_Product

{

    protected function _prepareProductsData($data)

    {

        if (!is_array($data)) {

            return null;

        }



        $_data = array();

        if (is_array($data) && is_null($data[0])) {

            $_data[] = $data;

        } else {

            $_data = $data;

        }



        return $_data;

    }



    /**

     * @param  $quoteId

     * @param  $productsData

     * @param  $store

     * @return bool

     */

    public function add($quoteId, $productsData, $store=null)

    {

        $quote = $this->_getQuote($quoteId, $store);

        if (empty($store)) {

            $store = $quote->getStoreId();

        }



        $productsData = $this->_prepareProductsData($productsData);

        if (empty($productsData)) {

            $this->_fault('invalid_product_data');

        }



        $errors = array();

        foreach ($productsData as $productItem) {

            if (isset($productItem['product_id'])) {

                $productByItem = $this->_getProduct($productItem['product_id'], $store, "id");

            } else if (isset($productItem['sku'])) {

                $productByItem = $this->_getProduct($productItem['sku'], $store, "sku");

            } else {

                $errors[] = Mage::helper('checkout')->__("One item of products do not have identifier or sku");

                continue;

            }



            $productRequest = $this->_getProductRequest($productItem);

            try {

                $result = $quote->addProduct($productByItem, $productRequest);

                if (is_string($result)) {

                    Mage::throwException($result);

                }

            } catch (Mage_Core_Exception $e) {

                $errors[] = $e->getMessage();

            }

        }



        if (!empty($errors)) {

            $this->_fault("add_product_fault", implode(PHP_EOL, $errors));

        }



        try {

            $quote->collectTotals()->save();

        } catch(Exception $e) {

            $this->_fault("add_product_quote_save_fault", $e->getMessage());

        }



        return true;

    }



    /**

     * @param  $quoteId

     * @param  $productsData

     * @param  $store

     * @return bool

     */

    public function update($quoteId, $productsData, $store=null)

    {

        $quote = $this->_getQuote($quoteId, $store);

        if (empty($store)) {

            $store = $quote->getStoreId();

        }



        $productsData = $this->_prepareProductsData($productsData);

        if (empty($productsData)) {

            $this->_fault('invalid_product_data');

        }



        $errors = array();

        foreach ($productsData as $productItem) {

            if (isset($productItem['product_id'])) {

                $productByItem = $this->_getProduct($productItem['product_id'], $store, "id");

            } else if (isset($productItem['sku'])) {

                $productByItem = $this->_getProduct($productItem['sku'], $store, "sku");

            } else {

                $errors[] = Mage::helper('checkout')->__("One item of products do not have identifier or sku");

                continue;

            }



            /** @var $quoteItem Mage_Sales_Model_Quote_Item */

            $quoteItem = $this->_getQuoteItemByProduct($quote, $productByItem, $this->_getProductRequest($productItem));

            if (is_null($quoteItem->getId())) {

                $errors[] = Mage::helper('checkout')->__("One item of products is not belong any of quote item");

                continue;

            }



            if ($productItem['qty'] > 0) {

                $quoteItem->setQty($productItem['qty']);

            }

        }



        if (!empty($errors)) {

            $this->_fault("update_product_fault", implode(PHP_EOL, $errors));

        }



        try {

            $quote->save();

        } catch(Exception $e) {

            $this->_fault("update_product_quote_save_fault", $e->getMessage());

        }



        return true;

    }



    /**

     * @param  $quoteId

     * @param  $productsData

     * @param  $store

     * @return bool

     */

    public function remove($quoteId, $productsData, $store=null)

    {

        $quote = $this->_getQuote($quoteId, $store);

        if (empty($store)) {

            $store = $quote->getStoreId();

        }



        $productsData = $this->_prepareProductsData($productsData);

        if (empty($productsData)) {

            $this->_fault('invalid_product_data');

        }



        $errors = array();

        foreach ($productsData as $productItem) {

            if (isset($productItem['product_id'])) {

                $productByItem = $this->_getProduct($productItem['product_id'], $store, "id");

            } else if (isset($productItem['sku'])) {

                $productByItem = $this->_getProduct($productItem['sku'], $store, "sku");

            } else {

                $errors[] = Mage::helper('checkout')->__("One item of products do not have identifier or sku");

                continue;

            }



            try {

                /** @var $quoteItem Mage_Sales_Model_Quote_Item */

                $quoteItem = $this->_getQuoteItemByProduct($quote, $productByItem, $this->_getProductRequest($productItem));

                if (is_null($quoteItem->getId())) {

                    $errors[] = Mage::helper('checkout')->__("One item of products is not belong any of quote item");

                    continue;

                }

                $quote->removeItem($quoteItem->getId());

            } catch (Mage_Core_Exception $e) {

                $errors[] = $e->getMessage();

            }

        }



        if (!empty($errors)) {

            $this->_fault("remove_product_fault", implode(PHP_EOL, $errors));

        }



        try {

            $quote->save();

        } catch(Exception $e) {

            $this->_fault("remove_product_quote_save_fault", $e->getMessage());

        }



        return true;

    }



    /**

     * @param  $quoteId

     * @param  $store

     * @return array

     */

    public function items($quoteId, $store = null)

    {

        $quote = $this->_getQuote($quoteId, $store);

        if (empty($store)) {

            $store = $quote->getStoreId();

        }



        if (!$quote->getItemsCount()) {

            return array();

        }



        $productsResult = array();

        foreach ($quote->getAllItems() as $item) {

            /** @var $item Mage_Sales_Model_Quote_Item */

            $product = $item->getProduct();

            $productsResult[] = array( // Basic product data

                'product_id' => $product->getId(),

                'sku'        => $product->getSku(),

                'set'        => $product->getAttributeSetId(),

                'type'       => $product->getTypeId(),

                'categories' => $product->getCategoryIds(),

                'websites'   => $product->getWebsiteIds()

            );

        }



        return $productsResult;

    }



    /**

     * @param  $quoteId

     * @param  $productsData

     * @param  $store

     * @return bool

     */

    public function moveToCustomerQuote($quoteId, $productsData, $store=null)

    {

        $quote = $this->_getQuote($quoteId, $store);



        if (empty($store)) {

            $store = $quote->getStoreId();

        }



        $customer = $quote->getCustomer();

        if (is_null($customer->getId())) {

            $this->_fault('customer_not_set_for_quote');

        }



        /** @var $customerQuote Mage_Sales_Model_Quote */

        $customerQuote = Mage::getModel('sales/quote')

            ->setStoreId($store)

            ->loadByCustomer($customer);



        if (is_null($customerQuote->getId())) {

            $this->_fault('customer_quote_not_exist');

        }



        if ($customerQuote->getId() == $quote->getId()) {

            $this->_fault('quotes_are_similar');

        }



        $productsData = $this->_prepareProductsData($productsData);

        if (empty($productsData)) {

            $this->_fault('invalid_product_data');

        }



        $errors = array();

        foreach($productsData as $key => $productItem){

            if (isset($productItem['product_id'])) {

                $productByItem = $this->_getProduct($productItem['product_id'], $store, "id");

            } else if (isset($productItem['sku'])) {

                $productByItem = $this->_getProduct($productItem['sku'], $store, "sku");

            } else {

                $errors[] = Mage::helper('checkout')->__("One item of products do not have identifier or sku");

                continue;

            }



            try {

                /** @var $quoteItem Mage_Sales_Model_Quote_Item */

                $quoteItem = $this->_getQuoteItemByProduct($quote, $productByItem, $this->_getProductRequest($productItem));

                if($quoteItem->getId()){

                    $customerQuote->addItem($quoteItem);

                    $quote->removeItem($quoteItem->getId());

                    unset($productsData[$key]);

                } else {

                     $errors[] = Mage::helper('checkout')->__("One item of products is not belong any of quote item");

                }

            } catch (Mage_Core_Exception $e) {

                $errors[] = $e->getMessage();

            }

        }



        if (count($productsData) || !empty($errors)) {

            $this->_fault('unable_to_move_all_products', implode(PHP_EOL, $errors));

        }



        try {

            $customerQuote

                ->collectTotals()

                ->save();



            $quote

                ->collectTotals()

                ->save();

        } catch (Exception $e) {

             $this->_fault("product_move_quote_save_fault", $e->getMessage());

        }



        return true;

    }

}