/**
  * {@inheritdoc}
  */
 public function filter(ProxyQueryInterface $queryBuilder, $alias, $field, $data)
 {
     if (!$data || !is_array($data) || !array_key_exists('value', $data)) {
         return;
     }
     $data['value'] = trim($data['value']);
     if (strlen($data['value']) == 0) {
         return;
     }
     $data['type'] = !isset($data['type']) ? ChoiceType::TYPE_CONTAINS : $data['type'];
     $operator = $this->getOperator((int) $data['type']);
     if (!$operator) {
         $operator = 'LIKE';
     }
     $entities = $queryBuilder->getRootEntities();
     $classMetadata = $this->listener->getTranslatableMetadata(current($entities));
     $transMetadata = $this->listener->getTranslatableMetadata($classMetadata->targetEntity);
     // Add inner join
     if (!$this->hasJoin($queryBuilder, $alias)) {
         $parameterName = $this->getNewParameterName($queryBuilder);
         $queryBuilder->innerJoin(sprintf('%s.%s', $alias, $classMetadata->translations->name), 'trans', Expr\Join::WITH, sprintf('trans.%s = :%s', $transMetadata->locale->name, $parameterName));
         $queryBuilder->setParameter($parameterName, $this->listener->getCurrentLocale());
     }
     // c.name > '1' => c.name OPERATOR :FIELDNAME
     $parameterName = $this->getNewParameterName($queryBuilder);
     $this->applyWhere($queryBuilder, sprintf('%s.%s %s :%s', 'trans', $field, $operator, $parameterName));
     if ($data['type'] == ChoiceType::TYPE_EQUAL) {
         $queryBuilder->setParameter($parameterName, $data['value']);
     } else {
         $queryBuilder->setParameter($parameterName, sprintf($this->getOption('format'), $data['value']));
     }
 }
 /**
  * Set request locale
  *
  * @param GetResponseEvent $event
  * @return void
  */
 public function onKernelRequest(GetResponseEvent $event)
 {
     $this->translatableListener->setCurrentLocale($event->getRequest()->getLocale());
 }