ModuleUninstallValidatorInterface::validate

public ModuleUninstallValidatorInterface::validate($module)

public function validate($module) {
  $entity_types = $this->entityManager->getDefinitions();
  $reasons = array();
  foreach ($entity_types as $entity_type) {
    if ($module == $entity_type->getProvider() && $entity_type instanceof ContentEntityTypeInterface && $this->entityManager->getStorage($entity_type->id())->hasData()) {
      $reasons[] = $this->t('There is content for the entity type: @entity_type', array('@entity_type' => $entity_type->getLabel()));
    }
  }
  return $reasons;
}

public function validate($module);