README

##Installation composer require twin-elements/sortable-bundle

in /config/packages/routes.yaml add

sortable_admin:
    resource: "@TwinElementsSortableBundle/Controller/"
    prefix: /admin
    type: annotation
    requirements:
        _locale: '%app_locales%'
    defaults:
        _locale: '%locale%'
        _admin_locale: '%admin_locale%'
    options: { i18n: false }

in assets/admin/entry.js add

if(typeof IS_SORTABLE_ENABLED !== "undefined" && IS_SORTABLE_ENABLED ){
    import(/*webpackChunkName: "sortable-module"*/'../../public/bundles/twinelementssortable/js/sortable');
}

How it use?

1.In template with list marked as 'sortable'

add {% use '@TwinElementsSortable/blocks.html.twig' %}

and

{% block head_js %}
    {{ block('sortable') }}
{% endblock %}

1. In controller

    $responseParameters = new ResponseParameterBuilder();
    $responseParameters
        ->addParameter('key',$value);

    SortableResponseParametersPreparer::prepare($responseParameters, Entity::class);