I try to install payment gateway plugin to Opencart (2.0.3). I'm informed that I need to use ocmod to properly install plugin. But I do not know which files I need to create besides the files in admin and catalog folders. I've followed this tut on system modification but still no avail.
What should be content of install .xml?
I do not know where and what to modify (system modification)?
Docs is short to explain...
See my related question.
Ocmod files are used to alter existing files on the opencart system. For example, if you wanted to change checkout.php, you could include this in your ocmod file
<file path="catalog/controller/checkout/checkout.php">
<operation>
<search index="0"><![CDATA[public function index() {]]></search>
<add position="after"><![CDATA[
echo('This line will be added at the beginning of the index function');]]>
</add>
</operation>
</file>
Here's what the structure generally looks like
<?xml version="1.0" encoding="UTF-8"?>
<modification>
<id>For 2.1.0.2</id>
<name>Stack Overflow plug-in</name>
<code>Stack Overflow plug-in</code>
<version>1.1</version>
<vqmver></vqmver>
<author>Igor Savinkin</author>
<file path="catalog/controller/checkout/cart.php">
<operation>
<search index="0"><![CDATA[$data['continue'] = $this->url->link('common/home')]]></search>
<add position="before"><![CDATA[
//blah blah]]>
</add>
</operation>
<operation>
<search index="0"><![CDATA[unset($this->session->data['reward']);]]></search>
<add position="after"><![CDATA[
//blah]]>
</add>
</operation>
</file>
<file path="catalog/controller/product/product.php">
<operation>
<search index="0"><![CDATA[$this->load->model('catalog/product');]]></search>
<add position="replace"><![CDATA[
//etc]]>
</add>
</operation>
</file>
</modification>
The client then will upload these files under "extension installer" in the admin.
