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DB: Fix offset quotes #1201

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Feb 27, 2021
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1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ The format is almost based on [Keep a Changelog](https://keepachangelog.com/en/1
### Changed

### Fixed
- Item list not using ID for offset 2 (#1200)

## [15.4.0-beta1] - 2021-02-23
### Changed
Expand Down
55 changes: 31 additions & 24 deletions lib/Db/ItemMapperV2.php
Original file line number Diff line number Diff line change
Expand Up @@ -402,6 +402,22 @@ public function findAllAfter(string $userId, int $feedType, int $updatedSince):
return $this->findEntities($builder);
}

/**
* Generate an expression for the offset.
*
* @param bool $oldestFirst Sorting direction
*
* @return string
*/
private function offsetWhere(bool $oldestFirst): string
{
if ($oldestFirst === true) {
return 'items.id > :offset';
}

return 'items.id < :offset';
}

/**
* @param string $userId User identifier
* @param int $feedId Feed identifier
Expand All @@ -424,21 +440,13 @@ public function findAllFeed(
): array {
$builder = $this->db->getQueryBuilder();

if ($oldestFirst === true) {
$offsetWhere = $builder->expr()->lt('items.id', ':offset');
} else {
$offsetWhere = $builder->expr()->gt('items.id', ':offset');
}

$builder->select('items.*')
->from($this->tableName, 'items')
->innerJoin('items', FeedMapperV2::TABLE_NAME, 'feeds', 'items.feed_id = feeds.id')
->andWhere('feeds.user_id = :userId')
->andWhere('items.feed_id = :feedId')
->andWhere($offsetWhere)
->setParameter('userId', $userId)
->setParameter('feedId', $feedId)
->setParameter('offset', $offset)
->setMaxResults($limit)
->orderBy('items.last_modified', ($oldestFirst ? 'ASC' : 'DESC'))
->addOrderBy('items.id', ($oldestFirst ? 'ASC' : 'DESC'));
Expand All @@ -451,6 +459,11 @@ public function findAllFeed(
}
}

if ($offset !== 0) {
$builder->andWhere($this->offsetWhere($oldestFirst))
->setParameter('offset', $offset);
}

if ($hideRead === true) {
$builder->andWhere('items.unread = 1');
}
Expand Down Expand Up @@ -486,20 +499,12 @@ public function findAllFolder(
$folderWhere = $builder->expr()->eq('feeds.folder_id', new Literal($folderId), IQueryBuilder::PARAM_INT);
}

if ($oldestFirst === true) {
$offsetWhere = $builder->expr()->lt('items.id', ':offset');
} else {
$offsetWhere = $builder->expr()->gt('items.id', ':offset');
}

$builder->select('items.*')
->from($this->tableName, 'items')
->innerJoin('items', FeedMapperV2::TABLE_NAME, 'feeds', 'items.feed_id = feeds.id')
->andWhere('feeds.user_id = :userId')
->andWhere($folderWhere)
->andWhere($offsetWhere)
->setParameter('userId', $userId)
->setParameter('offset', $offset)
->setMaxResults($limit)
->orderBy('items.last_modified', ($oldestFirst ? 'ASC' : 'DESC'))
->addOrderBy('items.id', ($oldestFirst ? 'ASC' : 'DESC'));
Expand All @@ -512,6 +517,11 @@ public function findAllFolder(
}
}

if ($offset !== 0) {
$builder->andWhere($this->offsetWhere($oldestFirst))
->setParameter('offset', $offset);
}

if ($hideRead === true) {
$builder->andWhere('items.unread = 1');
}
Expand Down Expand Up @@ -540,19 +550,11 @@ public function findAllItems(
): array {
$builder = $this->db->getQueryBuilder();

if ($oldestFirst === true) {
$offsetWhere = $builder->expr()->lt('items.id', ':offset');
} else {
$offsetWhere = $builder->expr()->gt('items.id', ':offset');
}

$builder->select('items.*')
->from($this->tableName, 'items')
->innerJoin('items', FeedMapperV2::TABLE_NAME, 'feeds', 'items.feed_id = feeds.id')
->andWhere('feeds.user_id = :userId')
->andWhere($offsetWhere)
->setParameter('userId', $userId)
->setParameter('offset', $offset)
->setMaxResults($limit)
->orderBy('items.last_modified', ($oldestFirst ? 'ASC' : 'DESC'))
->addOrderBy('items.id', ($oldestFirst ? 'ASC' : 'DESC'));
Expand All @@ -565,6 +567,11 @@ public function findAllItems(
}
}

if ($offset !== 0) {
$builder->andWhere($this->offsetWhere($oldestFirst))
->setParameter('offset', $offset);
}

switch ($type) {
case ListType::STARRED:
$builder->andWhere('items.starred = 1');
Expand Down
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