/**
  * @param \Claroline\CoreBundle\Entity\Role[] $roles
  * @param integer                             $page
  *
  * @return \PagerFanta\PagerFanta
  */
 public function getWorkspacesWithSelfUnregistrationByRoles($roles, $page)
 {
     $workspaces = $this->workspaceRepo->findWorkspacesWithSelfUnregistrationByRoles($roles);
     return $this->pagerFactory->createPagerFromArray($workspaces, $page);
 }