/**
* @param ResourceIdentifierInterface $identifier
* @param string|null $key
* @return bool
*/
protected function validateIdentifier(ResourceIdentifierInterface $identifier, $key = null)
{
$valid = true;
/** Must have a type */
if (!$identifier->hasType()) {
$this->addError($this->errorFactory->memberRequired(ResourceIdentifierInterface::TYPE, $key ? P::relationshipData($key) : P::data()));
$valid = false;
} elseif (!$this->isSupportedType($identifier->getType())) {
$this->addError($this->errorFactory->relationshipUnsupportedType($this->expectedTypes, $identifier->getType(), $key));
$valid = false;
}
/** Must have an id */
if (!$identifier->hasId()) {
$this->addError($this->errorFactory->memberRequired(ResourceIdentifierInterface::ID, $key ? P::relationshipId($key) : P::data()));
$valid = false;
}
return $valid;
}