public function reverseTransform($tagString)
{
$tagCollection = new ArrayCollection();
if (empty($tagString)) {
return $tagCollection;
}
$slugify = new Slugify();
foreach (explode(',', $tagString) as $tag) {
$tag = trim($tag);
$tagSlugged = $slugify->slugify($tag);
$tagEntity = $this->em->getRepository('AppBundle:Tag')->findOneBy(array('tag' => $tagSlugged));
if (!$tagEntity instanceof Tag) {
$tagEntity = new Tag();
$tagEntity->setTag($tagSlugged);
}
$tagCollection->add($tagEntity);
}
return $tagCollection;
}