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-rw-r--r--CHANGELOG.md1
-rw-r--r--lib/Db/ItemMapperV2.php2
2 files changed, 2 insertions, 1 deletions
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a484f6f2c..ad23bef00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ The format is almost based on [Keep a Changelog](https://keepachangelog.com/en/1
### Changed
### Fixed
+- Purging error "Undefined index: articlesPerUpdate"
## [15.2.0] - 2021-02-02
diff --git a/lib/Db/ItemMapperV2.php b/lib/Db/ItemMapperV2.php
index 9b69cc9f2..1525d6941 100644
--- a/lib/Db/ItemMapperV2.php
+++ b/lib/Db/ItemMapperV2.php
@@ -150,7 +150,7 @@ class ItemMapperV2 extends NewsMapperV2
{
$feedQb = $this->db->getQueryBuilder();
$feedQb->select('feed_id', $feedQb->func()->count('*', 'itemCount'))
- ->addSelect($feedQb->func()->max('feeds.articles_per_update', 'articlesPerUpdate'))
+ ->selectAlias($feedQb->func()->max('feeds.articles_per_update'), 'articlesPerUpdate')
->from($this->tableName, 'items')
->innerJoin('items', FeedMapperV2::TABLE_NAME, 'feeds', 'items.feed_id = feeds.id')
->groupBy('feed_id');