eZ language switcher and legacy routes

pagelayout.html.twig

{# Pagelayout from SiteBundle #}

{% block menu %}
    {# Assuming you may have your own menu markup here as well #}
    
    {# Defaults to the current route, unless routeRef is already defined #}
    {% set routeRef = routeRef|default( ez_route( params={"language": "esl-ES"} ) ) %}
{% endblock %}

pagelayout_legacy.html.twig

{% extends "MySiteBundle::pagelayout.html.twig" %}

{% block menu %}
    {# Defining a specific route reference for current legacy module #}
    {# You may also add view parameters and/or query parameters #}
    {% set routeRef = ez_route( "ez_legacy", {"module_uri": app.request.attributes.get( "semanticPathinfo" )} ) %}
    {{ parent() }}
{% endblock %}

parameters.yml

parameters:
    ezpublish_legacy.my_siteaccess.module_default_layout: "MyLegacyBundle::pagelayout_legacy.html.twig"