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I want to adjust the header menu. It works a bit by editing topmenu.phtml, at least for the $outermostClass to add some classes but I think $childrenWrapClass has an error since in function _addSubMenu in topmenu.php it does not use the var.

Though anyway, I would need more than adding a class to submenus. I would need to make the links look like

<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">

So I would need to edit topmenu.php in any way.

How to edit the topmenu.php? It is located originally in module-theme/Block/Html/Topmenu.php

Can I place it in my theme directory somewhere simply?

Someone mentioned I would need to create a module for it. Does that mean creating a directory on the same level of Magento_Theme in my theme directory? If so then how to name that directory and where to place my topmenu.php in order to use this instead the original one?

Thank you!

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You have to create module for changes in Topmenu.php file,

File path is : app/code

Create module name Package/Topmenu/registration.php,

<?php

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

Package/Topmenu/etc/module.xml,

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Package_Topmenu" setup_version="1.0.0"></module>
</config>

Create di.xml file for override topmenu file,

filepath is Package/Topmenu/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="Magento\Theme\Block\Html\Topmenu" type="Package\Topmenu\Block\Topmenu"/>
</config>

Create block for override topmenu file function, Package/Topmenu/Block/Topmenu.php,

<?php

namespace Package\Topmenu\Block;

class Topmenu extends \Magento\Theme\Block\Html\Topmenu
{
     //override core function here..

}

Run command , php bin/magento setup:upgrade

Clear cache and check now its overrider core block.

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  • Thank you for your answer but I was wondering about some things. In my magento 2.0.7 there is only a app/design and a app/etc directory. Is the app/code path still correct or is it from some earlier magento version? – user789660 Jun 22 '16 at 11:29
  • You have to just create folder inside app folder with name code, by default code folder is not available – Rakesh Jesadiya Jun 22 '16 at 11:31
  • Thank you! And regarding the directory names Package and Topmenu, are those to be taken in order to override or in order to easily recognize or can I use directories like vendor/themename since it is only for a theme? I wonder if it would not make sense for magento devs to include only theme modules into a theme directory directly too. – user789660 Jun 22 '16 at 11:48
  • working for you now or not? – Rakesh Jesadiya Jun 22 '16 at 11:58
  • I'm on it. Need to do the setup:upgrade now... php tags don't need closing tags anymore? didn't know that. – user789660 Jun 22 '16 at 12:01

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