/**
* @see EntityLookup::hasEntity
*
* If the given entity ID points to a redirect, that redirect is resolved and the
* existence of the target entity is checked.
*
* @param EntityId $entityId
*
* @return bool
* @throws EntityLookupException
*/
public function hasEntity(EntityId $entityId)
{
try {
return $this->lookup->hasEntity($entityId);
} catch (UnresolvedEntityRedirectException $ex) {
return $this->lookup->hasEntity($ex->getRedirectTargetId());
}
}
/**
* @param string $propertyLabelOrId
* @param string $languageCode
*
* @throws PropertyLabelNotResolvedException
* @return PropertyId
*/
public function resolvePropertyId($propertyLabelOrId, $languageCode)
{
try {
$propertyId = new PropertyId($propertyLabelOrId);
if (!$this->entityLookup->hasEntity($propertyId)) {
throw new PropertyLabelNotResolvedException($propertyLabelOrId, $languageCode);
}
} catch (InvalidArgumentException $ex) {
$propertyId = $this->findPropertyByLabel($propertyLabelOrId, $languageCode);
}
return $propertyId;
}
/**
* @see ValueValidator::validate()
*
* @param EntityIdValue|EntityId $value The ID to validate
*
* @return Result
* @throws InvalidArgumentException
*/
public function validate($value)
{
if ($value instanceof EntityIdValue) {
$value = $value->getEntityId();
}
if (!$value instanceof EntityId) {
throw new InvalidArgumentException("Expected an EntityId object");
}
$actualType = $value->getEntityType();
$errors = array();
if ($this->entityType !== null && $actualType !== $this->entityType) {
$errors[] = Error::newError("Wrong entity type: " . $actualType, null, 'bad-entity-type', array($actualType));
}
if (!$this->entityLookup->hasEntity($value)) {
$errors[] = Error::newError("Entity not found: " . $value, null, 'no-such-entity', array($value));
}
return empty($errors) ? Result::newSuccess() : Result::newError($errors);
}
/**
* Parses a string to itemId
*
* @param string $itemString
* @return ItemId|null
*/
private function getItemId($itemString)
{
try {
$itemId = $this->idParser->parse($itemString);
if ($itemId instanceof ItemId) {
if (!$this->entityLookup->hasEntity($itemId)) {
$this->errorMessageKey = "item-not-found";
return null;
}
return $itemId;
}
} catch (EntityIdParsingException $e) {
$this->errorMessageKey = 'item-id-invalid';
} catch (InvalidArgumentException $e) {
$this->errorMessageKey = 'item-id-invalid';
}
return null;
}
/**
* @see EntityLookup::hasEntity
*
* @param EntityId $entityId
*
* @return bool
* @throws EntityLookupException
*/
public function hasEntity(EntityId $entityId)
{
return $this->entityLookup->hasEntity($entityId);
}