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71 lines
2.2 KiB
71 lines
2.2 KiB
<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Andreas Fischer <bantu@owncloud.com> |
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* @author Morris Jobke <hey@morrisjobke.de> |
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* @author tbelau666 <thomas.belau@gmx.de> |
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* @author Thomas Müller <thomas.mueller@tmit.eu> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OC\DB; |
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use OCP\IConfig; |
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/** |
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* Various PostgreSQL specific helper functions. |
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*/ |
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class PgSqlTools { |
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/** @var \OCP\IConfig */ |
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private $config; |
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/** |
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* @param \OCP\IConfig $config |
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*/ |
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public function __construct(IConfig $config) { |
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$this->config = $config; |
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} |
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/** |
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* @brief Resynchronizes all sequences of a database after using INSERTs |
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* without leaving out the auto-incremented column. |
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* @param \OC\DB\Connection $conn |
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* @return null |
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*/ |
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public function resynchronizeDatabaseSequences(Connection $conn) { |
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$filterExpression = '/^' . preg_quote($this->config->getSystemValue('dbtableprefix', 'oc_')) . '/'; |
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$databaseName = $conn->getDatabase(); |
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$conn->getConfiguration()->setFilterSchemaAssetsExpression($filterExpression); |
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foreach ($conn->getSchemaManager()->listSequences() as $sequence) { |
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$sequenceName = $sequence->getName(); |
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$sqlInfo = 'SELECT table_schema, table_name, column_name |
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FROM information_schema.columns |
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WHERE column_default = ? AND table_catalog = ?'; |
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$sequenceInfo = $conn->fetchAssoc($sqlInfo, array( |
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"nextval('$sequenceName'::regclass)", |
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$databaseName |
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)); |
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$tableName = $sequenceInfo['table_name']; |
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$columnName = $sequenceInfo['column_name']; |
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$sqlMaxId = "SELECT MAX($columnName) FROM $tableName"; |
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$sqlSetval = "SELECT setval('$sequenceName', ($sqlMaxId))"; |
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$conn->executeQuery($sqlSetval); |
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} |
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} |
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}
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