private function createRole($name)
{
$cod = $name;
// string (20)
$rank = strlen($name);
// Quick and dirty way to keep it unique
$xml = '<xml content and definition of this/>';
$display = true;
$text = 'Black then white are all i see in my infancy.';
$role = new Role();
$role->setCod($cod);
$role->setRank($rank);
$role->setXml($xml);
$role->setDisplay($display);
// true by default
$role->setName($name);
$role->setText($text);
$role->increaseNumberPeopleInMultimediaObject();
$this->dm->persist($role);
$this->dm->flush();
return $role;
}