From 5bb49feef805cab740a17da903f584ddbb3240f8 Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Tue, 2 Nov 2021 23:42:57 +0100
Subject: Allow NULL as well for limit, not integer only

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/private/DB/Connection.php                | 11 ++++++++---
 lib/private/DB/QueryBuilder/QueryBuilder.php | 12 ++++++++----
 2 files changed, 16 insertions(+), 7 deletions(-)

(limited to 'lib/private')

diff --git a/lib/private/DB/Connection.php b/lib/private/DB/Connection.php
index 58d8d114705..1965bb3eee4 100644
--- a/lib/private/DB/Connection.php
+++ b/lib/private/DB/Connection.php
@@ -189,15 +189,20 @@ class Connection extends \Doctrine\DBAL\Connection {
 	 * Prepares an SQL statement.
 	 *
 	 * @param string $statement The SQL statement to prepare.
-	 * @param int $limit
-	 * @param int $offset
+	 * @param int|null $limit
+	 * @param int|null $offset
 	 *
 	 * @return Statement The prepared statement.
 	 * @throws Exception
 	 */
 	public function prepare($statement, $limit = null, $offset = null): Statement {
-		if ($limit === -1) {
+		if ($limit === -1 || $limit === null) {
 			$limit = null;
+		} else {
+			$limit = (int) $limit;
+		}
+		if ($offset !== null) {
+			$offset = (int) $offset;
 		}
 		if (!is_null($limit)) {
 			$platform = $this->getDatabasePlatform();
diff --git a/lib/private/DB/QueryBuilder/QueryBuilder.php b/lib/private/DB/QueryBuilder/QueryBuilder.php
index e1f74f5327c..89265c74fae 100644
--- a/lib/private/DB/QueryBuilder/QueryBuilder.php
+++ b/lib/private/DB/QueryBuilder/QueryBuilder.php
@@ -450,12 +450,12 @@ class QueryBuilder implements IQueryBuilder {
 	/**
 	 * Sets the position of the first result to retrieve (the "offset").
 	 *
-	 * @param integer $firstResult The first result to return.
+	 * @param int $firstResult The first result to return.
 	 *
 	 * @return $this This QueryBuilder instance.
 	 */
 	public function setFirstResult($firstResult) {
-		$this->queryBuilder->setFirstResult($firstResult);
+		$this->queryBuilder->setFirstResult((int) $firstResult);
 
 		return $this;
 	}
@@ -477,12 +477,16 @@ class QueryBuilder implements IQueryBuilder {
 	 * of the databases will just return an empty result set, Oracle will return
 	 * all entries.
 	 *
-	 * @param integer $maxResults The maximum number of results to retrieve.
+	 * @param int|null $maxResults The maximum number of results to retrieve.
 	 *
 	 * @return $this This QueryBuilder instance.
 	 */
 	public function setMaxResults($maxResults) {
-		$this->queryBuilder->setMaxResults($maxResults);
+		if ($maxResults === null) {
+			$this->queryBuilder->setMaxResults($maxResults);
+		} else {
+			$this->queryBuilder->setMaxResults((int) $maxResults);
+		}
 
 		return $this;
 	}
-- 
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