Redefine the address to jump to after the user logs in

重新定义用户登录后跳转的地址

• 逻辑需求：用户登录之后,判断购物车是否有数据，有数据直接跳转到购物车页面，没有则显示原始的跳转效果。 
• 参考方法：http://www.magepsycho.com/free-stuff/magento-extensions.html?p=2 
• 解决办法：自定义模块，重写跳转方法。

在/app/etc/modules 下面增加Lollicupstore_Customer.xml

<?xml version="1.0" encoding="UTF-8" ?> 
<config> 
   <modules> 
        <Lollicupstore_Customer> 
            <active>true</active> 
            <codePool>local</codePool> 
        </Lollicupstore_Customer> 
    </modules> 
</config> 

在/app/code/local 下面增加LollicupStrore 模块，模块里面包含如下：Customer/controllers 文件夹 、etc文件夹  。

在Customer/controller下面新建AccountController.php ,引入Mage/Customer/controllers/AccountController.php，重写_loginPostRedirect ()

 
<?php 
require_once 'Mage/Customer/controllers/AccountController.php'; 
class Lollicupstore_Customer_AccountController extends Mage_Customer_AccountController 
{ 

    /** 
     * Define target URL and redirect customer after logging in 
     */ 
    protected function _loginPostRedirect() 
    { 
        $session = $this->_getSession(); 
 
        if (!$session->getBeforeAuthUrl() || $session->getBeforeAuthUrl() == Mage::getBaseUrl()) { 
            // Set default URL to redirect customer to 
            $session->setBeforeAuthUrl($this->_getHelper('customer')->getAccountUrl()); 
            // Redirect customer to the last page visited after logging in 
          if ($session->isLoggedIn()) { 
                if (!Mage::getStoreConfigFlag( 
                    Mage_Customer_Helper_Data::XML_PATH_CUSTOMER_STARTUP_REDIRECT_TO_DASHBOARD 
                )) { 
                    $referer = $this->getRequest()->getParam(Mage_Customer_Helper_Data::REFERER_QUERY_PARAM_NAME); 
                    if ($referer) { 
                        // Rebuild referer URL to handle the case when SID was changed 
                        $referer = $this->_getModel('core/url') 
                            ->getRebuiltUrl( $this->_getHelper('core')->urlDecodeAndEscape($referer)); 
                        if ($this->_isUrlInternal($referer)) { 
                            $session->setBeforeAuthUrl($referer); 
                        } 
                    } 
                } else if ($session->getAfterAuthUrl()) { 
                   $session->setBeforeAuthUrl($session->getAfterAuthUrl(true)); 
                } 
            } else { 
                $session->setBeforeAuthUrl( $this->_getHelper('customer')->getLoginUrl()); 
            } 
        } else if ($session->getBeforeAuthUrl() ==  $this->_getHelper('customer')->getLogoutUrl()) { 
            $session->setBeforeAuthUrl( $this->_getHelper('customer')->getDashboardUrl()); 
        } else { 
            if (!$session->getAfterAuthUrl()) { 
                $session->setAfterAuthUrl($session->getBeforeAuthUrl()); 
            } 
            if ($session->isLoggedIn()) { 
                $session->setBeforeAuthUrl($session->getAfterAuthUrl(true)); 
            } 
        } 
 
        $cart_qty = (int) Mage::getModel('checkout/cart')->getQuote()->getItemsQty(); 

        //if condition of shopping cart is NOT empty, redirect customers to shopping cart page once successful logged in. 
        if($cart_qty >0 ){ 
            $this->_redirectUrl('/checkout/cart/'); 
       }else{ 
            $this->_redirectUrl($session->getBeforeAuthUrl(true)); 
        } 
    } 
 
}