| public primaryKey ( EntityInterface $entity ) | ||
| $entity | EntityInterface | Instance of an entity to find the primary key of |
public function primaryKey(EntityInterface $entity)
{
$pkField = $this->entityManager()->primaryKeyField();
if (empty($pkField)) {
throw new Exception(get_class($entity) . " has no primary key field. Please mark one of its fields as autoincrement or primary.");
}
return $entity->{$pkField};
}