Merge pull request #23641 from nextcloud/backport/23602/stable20
[stable20] Fix updates of NULL appconfig values
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commit
2b12d71a0d
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@ -202,12 +202,9 @@ class AppConfig implements IAppConfig {
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$sql = $this->conn->getQueryBuilder();
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$sql->update('appconfig')
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->set('configvalue', $sql->createParameter('configvalue'))
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->where($sql->expr()->eq('appid', $sql->createParameter('app')))
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->andWhere($sql->expr()->eq('configkey', $sql->createParameter('configkey')))
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->setParameter('configvalue', $value)
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->setParameter('app', $app)
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->setParameter('configkey', $key);
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->set('configvalue', $sql->createNamedParameter($value))
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->where($sql->expr()->eq('appid', $sql->createNamedParameter($app)))
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->andWhere($sql->expr()->eq('configkey', $sql->createNamedParameter($key)));
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/*
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* Only limit to the existing value for non-Oracle DBs:
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@ -215,9 +212,25 @@ class AppConfig implements IAppConfig {
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* > Large objects (LOBs) are not supported in comparison conditions.
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*/
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if (!($this->conn instanceof OracleConnection)) {
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// Only update the value when it is not the same
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$sql->andWhere($sql->expr()->neq('configvalue', $sql->createParameter('configvalue')))
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->setParameter('configvalue', $value);
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/*
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* Only update the value when it is not the same
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* Note that NULL requires some special handling. Since comparing
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* against null can have special results.
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*/
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if ($value === null) {
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$sql->andWhere(
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$sql->expr()->isNotNull('configvalue')
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);
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} else {
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$sql->andWhere(
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$sql->expr()->orX(
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$sql->expr()->isNull('configvalue'),
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$sql->expr()->neq('configvalue', $sql->createNamedParameter($value))
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)
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);
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}
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}
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$changedRow = (bool) $sql->execute();
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