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.




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.

  • please check complier]
    – Amit Bera
    Jun 3, 2015 at 17:53
  • compiler is not enabled.
    – Krupali
    Jun 3, 2015 at 17:54
  • check class name by echo get_class(Mage::getModel('paypal/api_nvp')) is Mycompany_Modulename_Model_Api_Nvp. If it will given value Mycompany_Modulename_Model_Api_Nvp then the rewrite is proper
    – Amit Bera
    Jun 3, 2015 at 17:56
  • core file is called :(
    – Krupali
    Jun 3, 2015 at 18:01
  • Could you post the full config.xml fragment? The <models/> node should be inside <config><global>...
    – 7ochem
    Jun 3, 2015 at 19:15

1 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:


<?xml version="1.0"?>

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

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