/**
* Returns all items.
*
* @return ArrayCollection
*/
public function getRandomHeader()
{
$em = $this->container->get('doctrine')->getManager();
$headers = $em->getRepository("CoreBundle:Slider")->findBy(array());
$arr = new \Doctrine\Common\Collections\ArrayCollection();
foreach ($headers as $header) {
$arr->add($header);
}
$header = $arr->get(array_rand($arr->toArray()));
return $header;
}
