/**
* Hydrate all value objects within a JSON-LD node object.
*
* The node object represents a resource entity.
*
* Parses value objects according to the existence of certain properties, in
* order of priority:
*
* - property_id: all value types must contain a property ID
* - @value: hydrate a literal
* - value_resource_id: hydrate a resource value
* - @id: hydrate a URI value
*
* A value object that contains none of the above combinations is ignored.
*
* @param array $nodeObject A JSON-LD node object representing a resource
* @param Resource $resource The owning resource entity instance
* @param bool $append Whether to simply append instead of replacing
* existing values
*/
public function hydrate(array $nodeObject, $resource, $append = false)
{
$newValues = [];
$valueCollection = $resource->getValues();
$existingValues = $valueCollection->toArray();
// Iterate all properties in a node object. Note that we ignore terms.
foreach ($nodeObject as $property => $valueObjects) {
// Value objects must be contained in lists
if (!is_array($valueObjects)) {
continue;
}
// Iterate a node object list
foreach ($valueObjects as $valueObject) {
// Value objects must be lists and contain a property ID.
if (!(is_array($valueObject) && isset($valueObject['property_id']))) {
continue;
}
// Value objects must be mapped to a hydrate method.
$hydrateMethod = $this->getHydrateMethod($valueObject);
if (!$hydrateMethod) {
continue;
}
$value = current($existingValues);
if ($value === false || $append) {
$value = new Value();
$newValues[] = $value;
} else {
// Null out values as we re-use them
$existingValues[key($existingValues)] = null;
next($existingValues);
}
// Hydrate a single JSON-LD value object
$property = $this->adapter->getEntityManager()->getReference('Omeka\\Entity\\Property', $valueObject['property_id']);
$value->setResource($resource);
$value->setProperty($property);
$this->{$hydrateMethod}($valueObject, $value);
}
}
// Remove any values that weren't reused
if (!$append) {
foreach ($existingValues as $key => $existingValue) {
if ($existingValue !== null) {
$valueCollection->remove($key);
}
}
}
// Add any new values that had to be created
foreach ($newValues as $newValue) {
$valueCollection->add($newValue);
}
}
public function __construct()
{
parent::__construct();
$this->media = new ArrayCollection();
$this->siteBlockAttachments = new ArrayCollection();
$this->itemSets = new ArrayCollection();
}
public function __construct()
{
parent::__construct();
$this->items = new ArrayCollection();
}
