Magento 1 Rewrite Pagination url Parameter

Question

for sure this question has been asked so many times in different ways, but i didn't find anything usefull for my case.

We have an installation of Magento 1.9.3.6, the main task is to rewrite the pagination param to a SEO Friendly url param, for example:

http://www.example.com/category?p=2

to

http://www.example.com/category/p/2

we use nginx so the .htaccess ways is out, i'm trying to create a Router and an Observer (as the web suggest, maybe) that will rewrite the param if match, but i have one question:

If i allow magento to redirect the user to the correct page if in the URI there is "p=*" (with the Router & Observer way) it works, but how i REWRITE all the Links for example, in the pager? because also if magento allow to redirect to the correct page if there is a page param, the rendered urls in the whole rendered website are not rewrited.

Wich is the best way to do this? i need all the urls SEO Friendly and i won't use external modules.

Do you have any suggestions?

So many thanks in advance.

Answer 1

You could try to override the getUrl() method in the class Mage_Catalog_Model_Layer_Filter_Item, path /app/code/core/Mage/Catalog/Model/Layer/Filter/Item.php

Then, locate the function at the line 57, it will look like this:

public function getUrl()
 {
        $query = array(
        $this->getFilter()->getRequestVar()=>$this->getValue(),
Mage::getBlockSingleton('page/html_pager')->getPageVarName() => null // exclude current page from urls);
return Mage::getUrl('*/*/*', array('_current'=>true, '_use_rewrite'=>true, '_query'=>$query));
  }

In file config.xml of your custom module, rewrite class Mage_Catalog_Model_Layer_Filter_Item:

<models>
            ....
            <catalog>
    <layer_filter_item>Namespace_Module_Model_Catalog_Layer_Filter_Item</layer_filter_item>
<catalog>
....
</models>

Overriding function getUrl() of class Mage_Catalog_Model_Layer_Filter_Item in class Namespace_Module_Model_Catalog_Layer_Filter_Item Example with category:

public function getUrl()
{
    if($this->getFilter()->getRequestVar() == "cat"){ // or p or price
        $category_url = Mage::getModel('catalog/category')->load($this->getValue())->getUrl();
        $return = $category_url;
        $request = Mage::getUrl('*/*/*', array('_current'=>true, '_use_rewrite'=>true));
        if(strpos($request,'?') !== false ){
            $query_string = substr($request,strpos($request,'?'));
        }
        else{
            $query_string = '';
        }
        if(!empty($query_string)){
            $return .= $query_string;
        }
        return $return;
    }
    else{
        $query = array(
            $this->getFilter()->getRequestVar()=>$this->getValue(),
            Mage::getBlockSingleton('page/html_pager')->getPageVarName() => null // exclude current page from urls
        );

        return Mage::getUrl('*/*/*', array('_current'=>true, '_use_rewrite'=>true, '_query'=>$query));
    }
}

Let me know if it is useful

Kind regards