/**
* Displays the scale levels of a given competency framework for selection.
*
* @EXT\Route("/framework/{id}/levels", name="hevinci_pick_level")
* @EXT\Template
*
* @param Competency $framework
* @return array
* @throws \LogicException if the competency is not a framework root
*/
public function levelsAction(Competency $framework)
{
if ($framework->getRoot() !== $framework->getId()) {
throw new \LogicException('Scales are only linked to root competencies');
}
return ['scale' => $framework->getScale()];
}