Symfony2: Getting the list of user roles in FormBuilder

Question

I\'m making a form for user creation, and I want to give one or several roles to a user when I create him.

How do I get the list of roles defined in security.y

Answer 1

You can make a service for this and inject the "security.role_hierarchy.roles" parameter.

Service definition:

acme.user.roles:
   class: Acme\DemoBundle\Model\RolesHelper
   arguments: ['%security.role_hierarchy.roles%']

Service Class:

class RolesHelper
{
    private $rolesHierarchy;

    private $roles;

    public function __construct($rolesHierarchy)
    {
        $this->rolesHierarchy = $rolesHierarchy;
    }

    public function getRoles()
    {
        if($this->roles) {
            return $this->roles;
        }

        $roles = array();
        array_walk_recursive($this->rolesHierarchy, function($val) use (&$roles) {
            $roles[] = $val;
        });

        return $this->roles = array_unique($roles);
    }
}

You can get the roles in your controller like this:

$roles = $this->get('acme.user.roles')->getRoles();