*i have written insert code in doctrine like this $social = new Entities\SocialKeyword;
$social->setEventId($_GET["eventId"]);
$social->setHashtag($_GET["hashtag"]);
$this->em->persist($social);
$this->em->flush();
now i want to merge $_GET["eventId"] and $_GET(hashtag) and both are septated by '-' and insert it into prime colum in table.
i written it like this but its not working.
$social->setPrime(CONCAT($_GET["eventId"],'-', $_GET["hashtag"]));
need help.