ItemService::getSumStoryPointsBySourceIds

public function getSumStoryPointsBySourceIds(array $sourceIds): float
{
	$sumStoryPoints = 0;

	try
	{
		$queryObject = ItemTable::getList([
			'select' => ['STORY_POINTS'],
			'filter' => ['SOURCE_ID' => $sourceIds]
		]);
		while ($itemData = $queryObject->fetch())
		{
			$sumStoryPoints += (float) $itemData['STORY_POINTS'];
		}
	}
	catch (Exception $exception)
	{
		$this->errorCollection->setError(
			new Error($exception->getMessage(), self::ERROR_COULD_NOT_READ_ITEM)
		);
	}

	return $sumStoryPoints;
}