EventCompareManager::compare

public function compare(): EventCompareManager
{
	$this->eventValueForCompare = $this->transformValuesForCompare($this->event);
	$this->originalValueForCompare = $this->transformValuesForCompare($this->originalEvent);
	$this->compareFields();

	$this->significantFields = array_intersect($this->getDifferenceKeyFields(), $this->getSignificantFields());

	return $this;
}