/**
* @since 2.4
*
* {@inheritDoc}
*/
public function validate($dataValue)
{
$this->hasConstraintViolation = false;
if (!$this->canValidate($dataValue)) {
return $this->hasConstraintViolation;
}
$property = $dataValue->getProperty();
if (!ApplicationFactory::getInstance()->getPropertySpecificationLookup()->hasUniquenessConstraintBy($property)) {
return $this->hasConstraintViolation;
}
$blobStore = $this->cachedPropertyValuesPrefetcher->getBlobStore();
$dataItem = $dataValue->getDataItem();
$hash = $this->cachedPropertyValuesPrefetcher->createHashFromString($property->getKey() . ':' . $dataItem->getHash());
$container = $blobStore->read($hash);
$key = 'PVUC';
if (!$container->has($key)) {
$page = $this->tryFindMatchResultFor($hash, $dataValue);
$container->set($key, $page);
$blobStore->save($container);
}
$wikiPage = $container->get($key);
// Verify that the contextPage (where the annotation has its origin) is
// matchable to the request and in case it is not a match inform the user
// about the origin
if ($wikiPage instanceof DIWikiPage && !$dataValue->getContextPage()->equals($wikiPage)) {
$dataValue->addErrorMsg(array('smw-datavalue-uniqueness-constraint-error', $property->getLabel(), $dataValue->getWikiValue(), $wikiPage->getTitle()->getPrefixedText()));
$this->hasConstraintViolation = true;
}
}
