Translation parameters for menu items using KnpMenuBundle and Symfony3

Question

Introduction

In my personal project I am using:

• XAMPP with PHP v7.1.6
• Symfony v3.3.6
• KnpMnenuBundle dev-master / 2.2.x-dev [link 1], [link 2], [link 3] in order to manage Menus.
• Bootstrap v3.3.7
• Bootstrap and KnpMenuBundle integration [link 4]

Setting up

To setup i used documentation in [2], [3] and code samples [4]. My menu is working, integration between Bootstrap and KnpMenuBundle also works.

At the moment

Menu bundle works fine, simple translating works and integration works too.

My ProfileMenu code sample:

public function profileMenu(array $options)
{
    $menu = $this->factory->createItem('root');
    $menu->setChildrenAttribute('class', 'nav navbar-nav navbar-right');

    $menu->addChild('Profile', array('label' => 'menu.profile'))
        ->setExtras(array('dropdown' => true, 'icon' => 'fa fa-user'))
        ->setLinkAttribute('class', "dropdown-toggle")
        ->setLinkAttribute('data-toggle', "dropdown")
        ->setExtra('translation_domain', 'menu');

    $menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
        ->addChild('Logged in as', array('label' => 'layout.logged_in_as'))
        ->setExtra('divider_append', true)
        ->setExtra('translation_domain', 'FOSUserBundle');

    $menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
        ->addChild('My data', array('label' => 'menu.profile.myData', 'route' => 'fos_user_profile_show'))
        ->setExtra('translation_domain', 'menu');
    $menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
        ->addChild('Edit data', array('label' => 'menu.profile.editMyData', 'route' => 'fos_user_profile_edit'))
        ->setExtra('translation_domain', 'menu');
    $menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
        ->addChild('Change password', array('label' => 'menu.profile.changePassword', 'route' => 'fos_user_change_password'))
        ->setExtra('translation_domain', 'menu');

    $menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
        ->addChild('Exit', array('label' => 'menu.profile.logout', 'route' => 'fos_user_security_logout'))
        ->setExtra('divider_prepend', true)
        ->setExtra('translation_domain', 'menu');

    return $menu;
}

menu rendering is shown in following image

Question

How can i pass translation parameters (namely %username%) to menu (powered by KnpMenuBundle) and get it to render as intended?

How can one supply arguments:

|trans({'%username%': app.user.username}

in the MenuBuilder?

MY CODE

The code block in question is

$menu['Profile']->setChildrenAttribute("class", "dropdown-menu")
    ->addChild('Logged in as', array('label' => 'layout.logged_in_as'))
    ->setExtra('divider_append', true)
    ->setExtra('translation_domain', 'FOSUserBundle');

namely label string

Translating strings with parameters ordinarily, one would supply arguments like so:

<li><a href="#">{{ 'layout.logged_in_as'|trans({'%username%': app.user.username}, 'FOSUserBundle') }}</a></li>

Yet, i can not seem to figure out how to pass them in case of using KnpMenuBundle and Bootstrap integration.

Conclusion

Please advise.

Thank you for your time and knowledge.

Answer 1

You could declare your MenuBuilder as a service like this

#services.yml
app.menu_builder:
        class: AppBundle\Menu\MenuBuilder
        arguments:
            - @knp_menu.factory
            - @security.token_storage
            - @translator.default

Update MenuBuilder's constructor according to the dependencies on the above definition

With this you have access to all the things you need to perform your traduction

$user = $this->tokenStorage->getToken()->getUser(); // If you are under a path protect by security.yml access_constrol
$yourLoggedInTraduction = $this->translator->trans(
    'layout.logged_in_as', [
        '%username%' => $user->getUsername()
    ], 
    'FOSUserBundle', 
    'yourlocale'
); 
dump($yourLoggedInTraduction);

You should have your traduction and then map it to your profileMenu(...) function logic

I don't use sames version of symfony/knpMenu than you so maybe this code won't work directly but you just have to adapt to your needs

Ask for question if you want if it isn't clear

I hope I have helped you, if yes please mark the post as resolved ! : )