How to override third party module \view\frontend\templates\ from my custom theme using prefrence?

Question

I am using a third-party module, I am added one extra feature to it, after upgrade the extension all my changes removed right, how to handle this situation, i mean how to override third-party module from my theme,

eg. I am updated one feature in model app\code\Magefan\Blog\Model\Post.php How to add this update from my custom theme.

Answer 1

To achieve this you should override that class from your own module.

Create a Magento 2 module (lear here: https://devdocs.magento.com/videos/fundamentals/create-a-new-module/) and then add this in your etc/di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magefan\Blog\Model\Post" type="NameSpace\YourModule\Model\Magefan\Post" />
</config>

Now your class NameSpace\YourModule\Model\Magefan\Post.php

<?php

namespace NameSpace\YourModule\Model\Magefan;

class Post extends \Magefan\Blog\Model\Post {

    public function yourNewFunction()
    {
        return true;
    }
}

Now, if you call this function from your theme, then it should work.