/**
* Computes the changes of a child.
*
* @param array $mapping the mapping data
* @param mixed $child the child document.
* @param string $parentId the id of the parent document
* @param string $nodename the name of the node as specified by the mapping
* @param mixed $parent the parent document
*
* @return object the child instance (if we are replacing a child this can be a different instance than was originally provided)
*/
private function computeChildChanges($mapping, $child, $parentId, $nodename, $parent = null)
{
$targetClass = $this->dm->getClassMetadata(get_class($child));
$state = $this->getDocumentState($child);
switch ($state) {
case self::STATE_NEW:
// cascade persist is implicit on children, no check for cascading
// check if we have conflicting nodename information on creation.
if ($targetClass->nodename) {
$assignedName = $targetClass->getFieldValue($child, $targetClass->nodename);
if ($assignedName && $assignedName != $nodename) {
throw IdException::conflictingChildName($parentId, $mapping['fieldName'], $nodename, $child, $assignedName);
}
}
$childId = $parentId . '/' . $nodename;
$targetClass->setIdentifierValue($child, $childId);
if ($this->getDocumentById($childId)) {
$child = $this->merge($child);
} else {
$this->persistNew($targetClass, $child, ClassMetadata::GENERATOR_TYPE_ASSIGNED, $parent);
}
$this->computeChangeSet($targetClass, $child);
break;
case self::STATE_DETACHED:
throw new InvalidArgumentException('A detached document was found through a child relationship during cascading a persist operation: ' . self::objToStr($child, $this->dm));
default:
if (PathHelper::getParentPath($this->getDocumentId($child)) !== $parentId) {
throw PHPCRException::cannotMoveByAssignment(self::objToStr($child, $this->dm));
}
}
return $child;
}
