Symfony set data to multiple choiceType

Question

I set symfony choiceType value from inside the controller by using this:

    $editForm->get('userJobTitle')->setData($job->getJobTitle()->getId());

How to do it for multiple choiceType? the following method isn't working

 $editForm->get('userskills')->setData($job->getSkills());

where getSkills function return Doctrine collection.

Answer 1

setData() method requires array of strings which contain the values of selected options so i do:

$usSkills = $job->getSkills()->getValues();
        $vals = array();
        foreach ($usSkills as $us){
            $vals[] = (string)$us->getId();
        }
        $editForm->get('userskills')->setData($vals); 

and that solved the problem