Scoring::onActivityDelete

static function onActivityDelete(int $activityId): void
{
	$cursor = PredictionHistoryTable::getList([
		'select' => ['ID'],
		'filter' => [
			'=ASSOCIATED_ACTIVITY_ID' => $activityId
		]
	]);

	while ($row = $cursor->fetch())
	{
		PredictionHistoryTable::update($row['ID'], [
			'ASSOCIATED_ACTIVITY_ID' => null
		]);
	}
}