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Improve searchCollections() 

* Search ignores collection where we know the user can not access them
* If we filtered all results, we start over with a bigger offset

Signed-off-by: Joas Schilling <coding@schilljs.com>
This commit is contained in:
Joas Schilling 2019-02-11 13:04:27 +01:00 committed by Julius Härtl
parent 59c92a7513
commit a8a5472401
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GPG Key ID: 4C614C6ED2CDE6DF
1 changed files with 20 additions and 6 deletions
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26
lib/private/Collaboration/Resources/Manager.php
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@ -100,7 +100,6 @@ class Manager implements IManager {
throw new CollectionException('Collection not found');
}
$access = $row['access'] === null ? null : (bool) $row['access'];
if ($user instanceof IUser) {
$access = [$user->getUID() => $access];
@ -120,23 +119,38 @@ class Manager implements IManager {
*/
public function searchCollections(IUser $user, string $filter, int $limit = 50, int $start = 0): array {
$query = $this->connection->getQueryBuilder();
$query->select('*')
$userId = $user instanceof IUser ? $user->getUID() : '';
$query->select('c.*', 'a.access')
->from(self::TABLE_COLLECTIONS)
->where($query->expr()->iLike('name', $query->createNamedParameter($filter, IQueryBuilder::PARAM_STR)))
->leftJoin(
'r', self::TABLE_ACCESS_CACHE, 'a',
$query->expr()->andX(
$query->expr()->eq('c.id', 'a.resource_id'),
$query->expr()->eq('a.user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR))
)
)
->where($query->expr()->iLike('c.name', $query->createNamedParameter($filter, IQueryBuilder::PARAM_STR)))
->andWhere($query->expr()->neq('a.access', $query->createNamedParameter(0, IQueryBuilder::PARAM_INT)))
->setMaxResults($limit)
->setFirstResult($start);
$result = $query->execute();
$collections = [];
/** TODO: this is a huge performance bottleneck */
$foundResults = 0;
while ($row = $result->fetch()) {
$collection = new Collection($this, $this->connection, (int)$row['id'], (string)$row['name']);
$foundResults++;
$access = $row['access'] === null ? null : (bool) $row['access'];
$collection = new Collection($this, $this->connection, (int)$row['id'], (string)$row['name'], $user, $access);
if ($collection->canAccess($user)) {
$collections[] = $collection;
}
}
$result->closeCursor();
// TODO: call with increased first result if no matches found
if (empty($collections) && $foundResults === $limit) {
$this->searchCollections($user, $filter, $limit, $start + $limit);
}
return $collections;
}