TrackedObject::prepareUpdateEventData

public function prepareUpdateEventData(): array
{
	$eventDataArrays = [];
	foreach ($this->getTrackedFieldNames() as $trackedFieldName)
	{
		$eventData = $this->prepareUpdateEventDataForField($trackedFieldName);

		if ($this->isThisObjectDependant())
		{
			$eventData = $this->modifyEventDataAsDependant($eventData);
		}

		$eventDataArrays[] = $eventData;
	}

	return $this->normalizeEventDataArrays($eventDataArrays);
}