Overwrite Mage_Paypal_Model_Api_Nvp

Question

I want to overwrite Mage_Paypal_Model_Api_Nvp in my custom_module. For this, I have follow following steps but after that also core file is calling.

config.xml

 <models>
     <paypal>
       <rewrite>
          <api_nvp>Mycompany_Modulename_Model_Api_Nvp</api_nvp>
      </rewrite>
    </paypal>
</models>

Nvp.php

class Mycompany_Modulename_Model_Api_Nvp extends Mage_Paypal_Model_Api_Nvp
{
    <!-- Code -->
}

I have cleared cache, session, logs. But after that also my file is not called.

Answer 1

Your code definitely looks ok.

As the full config.xml file is missing here is what it should look like to ensure your rewrite works:

app/code/local/Mycompany/Modulename/etc/config.xml

<?xml version="1.0"?>
<config>
  <modules>
    <Mycompany_Modulename>
      <version>0.0.1</version>
    </Mycompany_Modulename>
  </modules>
  <global>
        <models>  
            <paypal>
                <rewrite>
                    <api_nvp>Mycompany_Modulename_Model_Api_Nvp</api_nvp>
                </rewrite>
            </paypal>
        </models>
    </global> 
</config> 

Then you need to you ensure the path to your custom model is right, it should be app/code/local/Mycompany/Modulename/Model/Api/Nvp.php

Once you're done with that don't forget to:

• recompile
• flush the cache