Magento 2 not able to override Block file

Question

I tried to override block file but I unable to see the output.

my script

di.xml file:

<?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="Magento\Theme\Block\Html\Topmenu" type="Company\Cms\Block\Html\Topmenu" />
</config>

Block file:

<?php

namespace Company\Cms\Block\Html;

class Topmenu extends \Magento\Theme\Block\Html\Topmenu{

    protected function _getHtml(
        \Magento\Framework\Data\Tree\Node $menuTree,
        $childrenWrapClass,
        $limit,
        $colBrakes = []
    ) {
        echo "exxit"; exit;
    }
}

and I followed the below link for this

How to override blocks in v2.1

please let me know if you have issue – Rakesh Jesadiya Nov 14 '17 at 13:10 — Rakesh Jesadiya, Nov 14 '17 at 13:10

Rakesh Jesadiya · Answer 1 · 2017-11-14T13:15:32.693

0

You need to change below way for your preference,

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Theme\Block\Html\Topmenu" type="Takeuchi\Cms\Block\Html\Topmenu" />
</config>

Replace type="Company\Cms\Block\Html\Topmenu" with type="Takeuchi\Cms\Block\Html\Topmenu"

edited Nov 14 '17 at 13:15

answered Nov 14 '17 at 11:08

Rakesh Jesadiya

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i forgot to change Package & Module names in Block file. still facing same issue – Ramesh Nov 14 '17 at 13:10
try with encoding in your xml line – Rakesh Jesadiya Nov 14 '17 at 13:15
@rakesh...I tried and facing same issue and Is it mandatory create layout and template as per this link https://magento.stackexchange.com/questions/134093/how-to-override-blocks-in-v2-1/134106 – Ramesh Nov 14 '17 at 13:25
you didnt create any module for above? if not without creating module its not possible to override core file – Rakesh Jesadiya Nov 14 '17 at 13:40
and i tried this blog also without changing names space & module names. http://catgento.com/2017/03/20/magento-2-display-category-image-in-navigation-menu/ – Ramesh Nov 14 '17 at 13:46
and i tried this blog also without changing names space & module names. – Ramesh Nov 14 '17 at 13:47

Magento 2 not able to override Block file

1 Answers1