hasTable('ldap_group_membership')) { $table = $schema->createTable('ldap_group_membership'); $table->addColumn('id', Types::BIGINT, [ 'autoincrement' => true, 'notnull' => true, ]); $table->addColumn('groupid', Types::STRING, [ 'notnull' => true, 'length' => 255, 'default' => '', ]); $table->addColumn('userid', Types::STRING, [ 'notnull' => true, 'length' => 64, 'default' => '', ]); $table->setPrimaryKey(['id']); $table->addUniqueIndex(['groupid', 'userid'], 'user_ldap_membership_unique'); return $schema; } else { return null; } } public function postSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void { /** @var ISchemaWrapper $schema */ $schema = $schemaClosure(); if (!$schema->hasTable('ldap_group_members')) { // Old table does not exist return; } $output->startProgress(); $this->copyGroupMembershipData(); $output->finishProgress(); } protected function copyGroupMembershipData(): void { $insert = $this->dbc->getQueryBuilder(); $insert->insert('ldap_group_membership') ->values([ 'userid' => $insert->createParameter('userid'), 'groupid' => $insert->createParameter('groupid'), ]); $query = $this->dbc->getQueryBuilder(); $query->select('*') ->from('ldap_group_members'); $result = $query->executeQuery(); while ($row = $result->fetch()) { $knownUsers = unserialize($row['owncloudusers']); if (!is_array($knownUsers)) { /* Unserialize failed or data was incorrect in database, ignore */ continue; } $knownUsers = array_unique($knownUsers); foreach ($knownUsers as $knownUser) { try { $insert ->setParameter('groupid', $row['owncloudname']) ->setParameter('userid', $knownUser) ; $insert->executeStatement(); } catch (\OCP\DB\Exception $e) { /* * If it fails on unique constaint violation it may just be left over value from previous half-migration * If it fails on something else, ignore as well, data will be filled by background job later anyway */ } } } $result->closeCursor(); } }