Magento 2 Override third party module block file

Question

I am working a Magento2 project and I have installed a third party module magefan/module-blog which is used for manage Blog/post.This module is installed in Magento Vendor folder.

path is magento/vendor/magefun/module-blog .

I have a custom requirement and some changes/updated in block files.Since module is exist in Magento vendor folder so we can't directly changed in this module.Hence we require to override file

/var/www/html/magento2/vendor/magefan/module-blog/Block/Category/view.php

in

/var/www/html/magento2/app/code

folder.I don't have idea how to override particular that file.

if anyone know about it.Please help me.

Answer 1

Following step need to follow

create app/code/Vendor/ModuleName/registration.php

\Magento\Framework\Component\ComponentRegistrar::register(
            \Magento\Framework\Component\ComponentRegistrar::MODULE,
            'Vendor_ModuleName',
            __DIR__
        );

create app/code/Vendor/ModuleName/etc/module.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
        <module name="Vendor_ModuleName" setup_version="1.0.0" />
    </config>

create app/code/Vendor/ModuleName/etc/di.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="ThirdPartyVendor\ThirdpartyModule\Block\File" type="Vendor\ModuleName\Block\File"/>
</config>

create app/code/Vendor/ModuleName/Block/File.php

namespace Vendor\ModuleName\Block;
use ThirdPartyVendor\ThirdpartyModule\Block\File as ThirdPartyFile;

class File extends ThirdPartyFile
{
...........
...........
}

Run Following Command:

 bin/magento setup:di:compile
 bin/magento c:f