ReactionItem::getByMessage

static function getByMessage(int $messageId, string $reaction, int $userId): ?self
{
	$reactionObject = ReactionTable::query()
		->setSelect(['*'])
		->where('MESSAGE_ID', $messageId)
		->where('REACTION', $reaction)
		->where('USER_ID', $userId)
		->fetchObject()
	;

	if ($reactionObject === null)
	{
		return null;
	}

	return new static($reactionObject);
}