magento目录搜索在url中添加结果计数

Question

I want to add result count in search url. The default url is like domain.com/catalogsearch/result/?q=queries But I want add result count in url like,

`domain.com/catalogsearch/result/?q=queries&count=50`

I tried with below event observer

controller_action_layout_render_before_catalogsearch_result_index

and Observer.php

 <?php
    class PackgeName_ModuleName_Model_Observer {
        // the product list block name in layout
        const RESULT_BLOCK_NAME = 'search_result_list';
        public function loadResult(Varien_Event_Observer $observer) {
            $currentUrl = Mage::helper ( 'core/url' )->getCurrentUrl ();

            $block = Mage::app ()->getLayout ()->getBlock ( self::RESULT_BLOCK_NAME );
            if ($block) {

                $collection = $block->getLoadedProductCollection ();

                /**
                 * @var Mage_Catalog_Model_Product $product
                 */
                $count = $collection->getSize ();

                $resultUrl = $currentUrl . '&count=' . $count;

                if ($resultUrl) {

                    Mage::app ()->getResponse ()->setRedirect ( $resultUrl );
                    exit (); // stop everything else
                }
            }
        }
    }

But the problem is its again triggered. So it go to endless loop. Any Idea's to fix this issue or Is there any way to achieve this ? Please help me..

Answer 1

Just add a check that the count is not in the request uri:

    public function loadResult(Varien_Event_Observer $observer) {

       $count = Mage::app()->getRequest()->getParam('count');

       if (!$count){

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

           $block = Mage::app ()->getLayout ()->getBlock ( self::RESULT_BLOCK_NAME );