Overriding or extending functionalities

You can extend the functionality of Nosto extension and modify what data is sent to Nosto.

In order to extend Nosto extension's functionality (methods, data, etc.) you must create a small Magento extension. This way, you can override the product model, order model or any other functionality provided by Nosto extension.

You need two configuration files for your custom extension: the main module file and the actual module configuration that defines the overrides.

The main module file in app/etc/modules/My_Nosto.xml

<?xml version="1.0"?>
<config>
    <modules>
        <My_Nosto>
            <active>true</active>
            <codePool>local</codePool>
            <depends>
                <Nosto_Tagging/>
            </depends>
        </My_Nosto>
    </modules>
</config>

The module config file in app/code/local/My/Nosto/etc/config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <My_Nosto>
            <version>0.1.0</version>
        </My_Nosto>
    </modules>
    <global>
        <models>
            <nosto_tagging>
                <rewrite>
                    <meta_product>My_Nosto_Model_Meta_Product</meta_product>
                    <meta_order>My_Nosto_Model_Meta_Order</meta_product>
                </rewrite>
            </nosto_tagging>
        </models>
    </global>
</config>

In the example configuration above we are overriding Nosto's Product and Order models. See full example how to override Product data from here