Override bundle template from another bundle in Symfony 4/5

Question

because bundle inheritance is deprecated since Symfony 3.4 and will be removed in 4.0, I\'m finding a new solution. I have:

• Application
• FooBundle

Answer 1

Here's a more comprehensible example

Let's start with making some assumptions

Your bundle's name: AcmeBundle

Bundle you want to override: FOSUserBundle

Run command php bin/console debug:twig and find the namespace of the bundle you want to override. In this case it's @FOSUser.

Your bundle extension should look like this

loadFromExtension('twig', array(
            'paths' => array(
                '%kernel.project_dir%/src/AcmeBundle/Resources/FOSUserBundle/views' => 'FOSUser', // You use the namespace you found earlier here. Discard the `@` symbol.
            ),
        ));
    }
}

Now you can create src/AcmeBundle/Resources/FOSUserBundle/views/Security/login.html.twig to override the login template of FOSUserBundle.

This was just an example for FOSUserBundle. You can change bundle names depending on what you're trying to override.