backport of join timestamps from options

lib/Db/OptionMapper.php

@@ -115,20 +115,6 @@ public function findConfirmed(int $pollId): array {
 		return $this->findEntities($qb);
 	}
 
-	/**
-	 * @return (int|null)[]
-	 */
-	public function findDateBoundaries(int $pollId): array {
-		$qb = $this->db->getQueryBuilder();
-
-		$qb->selectAlias($qb->func()->min('timestamp'), 'min')
-			->selectAlias($qb->func()->max('timestamp'), 'max')
-			->from($this->getTableName())
-			->where($qb->expr()->eq('poll_id', $qb->createNamedParameter($pollId, IQueryBuilder::PARAM_INT)));
-
-		return $qb->executeQuery()->fetchAll()[0];
-	}
-
 	/**
 	 * @return (int|null)[]
 	 */

lib/Db/Poll.php

@@ -78,6 +78,8 @@
  * @method void setLastInteraction(int $value)
  * @method string getMiscSettings()
  * @method void setMiscSettings(string $value)
+ * @method int getMinDate()
+ * @method int getMaxDate()
  */
 
 class Poll extends EntityWithUser implements JsonSerializable {
@@ -102,7 +104,6 @@ class Poll extends EntityWithUser implements JsonSerializable {
 	public const ONE_AND_HALF_DAY = 129600;
 
 	private IURLGenerator $urlGenerator;
-	private OptionMapper $optionMapper;
 	protected UserMapper $userMapper;
 	private VoteMapper $voteMapper;
 
@@ -132,6 +133,8 @@ class Poll extends EntityWithUser implements JsonSerializable {
 
 	// joined columns
 	protected bool $hasOrphanedVotes = false;
+	protected int $maxDate = 0;
+	protected int $minDate = 0;
 
 	public function __construct() {
 		$this->addType('created', 'int');
@@ -147,7 +150,8 @@ public function __construct() {
 		$this->addType('hideBookedUp', 'int');
 		$this->addType('useNo', 'int');
 		$this->addType('lastInteraction', 'int');
-		$this->optionMapper = Container::queryClass(OptionMapper::class);
+		$this->addType('maxDate', 'int');
+		$this->addType('minDate', 'int');
 		$this->urlGenerator = Container::queryClass(IURLGenerator::class);
 		$this->userMapper = Container::queryClass(UserMapper::class);
 		$this->voteMapper = Container::queryClass(VoteMapper::class);
@@ -321,7 +325,7 @@ public function getRelevantThresholdNet(): int {
 			$this->getCreated(),
 			$this->getLastInteraction(),
 			$this->getExpire(),
-			intval($this->optionMapper->findDateBoundaries($this->getId())['max']),
+			$this->getMaxDate(),
 		);
 	}
 
@@ -333,13 +337,15 @@ public function getOrphanedVotes(): int {
 	}
 
 	public function getDeadline(): int {
+		// if expiration is set return expiration date
 		if ($this->getExpire()) {
 			return $this->getExpire();
 		}
 
 		if ($this->getType() === Poll::TYPE_DATE) {
-			// use first date option as reminder deadline
-			return intval($this->optionMapper->findDateBoundaries($this->getId())['min']);
+			// use lowest date option as reminder deadline threshold
+			// if no options are set return is the current time
+			return $this->getMinDate();
 		}
 		throw new NoDeadLineException();
 	}

lib/Db/PollMapper.php

@@ -173,7 +173,32 @@ protected function buildQuery(): IQueryBuilder {
 			// TODO: check if this is necessary, in case of empty table to avoid possibly nulled columns
 			// ->groupBy(self::TABLE . '.id')
 			->from($this->getTableName(), self::TABLE);
+		$this->joinOptionsForMaxDate($qb, self::TABLE);
+		$qb->groupBy(self::TABLE . '.id');
 		return $qb;
 	}
 
+	/**
+	 * Joins options to evaluate min and max option date for date polls
+	 * if text poll or no options are set,
+	 * the min value is the current time,
+	 * the max value is null
+	 */
+	protected function joinOptionsForMaxDate(IQueryBuilder &$qb, string $fromAlias): void {
+		$joinAlias = 'options';
+		$saveMin = (string) time();
+
+		// force value into a MIN function to avoid grouping errors
+		// $qb->selectAlias($qb->func()->max($joinAlias . '.timestamp'), 'max_date');
+		$qb->addSelect($qb->createFunction('coalesce(MAX(' . $joinAlias . '.timestamp), 0) AS max_date'))
+			->addSelect($qb->createFunction('coalesce(MIN(' . $joinAlias . '.timestamp), ' . $saveMin . ') AS min_date'));
+
+		$qb->leftJoin(
+			$fromAlias,
+			Option::TABLE,
+			$joinAlias,
+			$qb->expr()->eq($fromAlias . '.id', $joinAlias . '.poll_id'),
+		);
+	}
+
 }