TimelineEntry::isAssociatedEntityExist

static function isAssociatedEntityExist($entityTypeID, $entityID)
{
	$query = new Query(Entity\TimelineTable::getEntity());
	$query->addFilter('=ASSOCIATED_ENTITY_ID', $entityID);
	$query->addFilter('=ASSOCIATED_ENTITY_TYPE_ID', $entityTypeID);
	$query->addSelect('ID');
	$query->setLimit(1);

	$dbResult = $query->exec();
	return is_array($dbResult->fetch());
}