/**
  * Gets enabled assignment methods.
  *
  * @return array
  *   An array of enabled assignment methods, sorted by weight.
  */
 public function getEnabledAssigners() {
   $enabled = $this->currentBundle->getEnabledAssignments();
   $weights = $this->currentBundle->getAssignmentWeights();
   foreach ($enabled as $key => $value) {
     $enabled[$key] = $weights[$key];
   }
   asort($enabled);
   return $enabled;
 }