How to get the previous url & redirect from controller

Question

How can I detect the URL and store it then use it on the Controller for Redirect. Can anyone help me with this?

Answer 1

To get current URL in Magento use below code.

$currentUrl = Mage::helper('core/url')->getCurrentUrl()

But i think your requirement is to get the previous URL & redirect from controller. If it so use below code.

$this->_redirectReferer()

Answer 2

In controller you can using redirect when using one of the following functions:

/**
 * Set redirect into responce
 *
 * @param   string $path
 * @param   array $arguments
 */
protected function _redirect($path, $arguments=array())
{

}

/**
 * Set redirect url into response
 *
 * @param   string $url
 * @return  Mage_Core_Controller_Varien_Action
 */
protected function _redirectUrl($url)
{
    $this->getResponse()->setRedirect($url);
    return $this;
}

/**
 * Set referer url for redirect in response
 *
 * @param   string $defaultUrl
 * @return  Mage_Core_Controller_Varien_Action
 */
protected function _redirectReferer($defaultUrl=null)
{

    $refererUrl = $this->_getRefererUrl();
    if (empty($refererUrl)) {
        $refererUrl = empty($defaultUrl) ? Mage::getBaseUrl() : $defaultUrl;
    }

    $this->getResponse()->setRedirect($refererUrl);
    return $this;
}

/**
 * Generate url by route and parameters in Adminhtml
 *
 * @param   string $route
 * @param   array $params
 * @return  string
 */
public function getUrl($route='', $params=array())
{
    return Mage::helper('adminhtml')->getUrl($route, $params);
}

Get URL of a path: Mage::getUrl($path, $arguments);

Example

You want redirect to controller of path: sales/order/view with params order_id=8

$this->_redirect('sales/order/view', array('order_id' => 8));