124 lines
2.6 KiB
Plaintext
124 lines
2.6 KiB
Plaintext
<?php declare(strict_types=1);
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/**
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* Query
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*
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* SQL Query Builder / Database Abstraction Layer
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*
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* PHP version 8.1
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*
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* @package Query
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* @author Timothy J. Warren <tim@timshome.page>
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* @copyright 2012 - 2023 Timothy J. Warren
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @link https://git.timshomepage.net/aviat/Query
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* @version 4.0.0
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*/
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namespace Query\Drivers\Mysql;
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use PDO;
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use Query\Drivers\AbstractUtil;
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/**
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* MySQL-specific backup, import and creation methods
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*/
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class Util extends AbstractUtil
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{
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/**
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* Create an SQL backup file for the current database's structure
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*/
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public function backupStructure(): string
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{
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$string = [];
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// Get databases
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$driver = $this->getDriver();
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$dbs = $driver->getDbs();
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foreach ($dbs as &$d)
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{
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// Skip built-in dbs
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// @codeCoverageIgnoreStart
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if ($d === 'mysql')
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{
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continue;
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}
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// @codeCoverageIgnoreEnd
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// Get the list of tables
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$tables = $driver->driverQuery("SHOW TABLES FROM `{$d}`", TRUE);
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foreach ($tables as $table)
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{
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$array = $driver->driverQuery("SHOW CREATE TABLE `{$d}`.`{$table}`", FALSE);
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$row = current($array);
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if ( ! isset($row['Create Table']))
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{
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continue;
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}
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$string[] = $row['Create Table'];
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}
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}
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return implode("\n\n", $string);
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}
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/**
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* Create an SQL backup file for the current database's data
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*/
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public function backupData(array $exclude=[]): string
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{
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$driver = $this->getDriver();
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$tables = $driver->getTables();
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// Filter out the tables you don't want
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if ( ! empty($exclude))
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{
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$tables = array_diff($tables, $exclude);
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}
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$outputSql = '';
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// Select the rows from each Table
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foreach ($tables as $t)
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{
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$sql = "SELECT * FROM `{$t}`";
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$res = $driver->query($sql);
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$rows = $res->fetchAll(PDO::FETCH_ASSOC);
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// Skip empty tables
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if ((is_countable($rows) ? count($rows) : 0) < 1)
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{
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continue;
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}
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// Nab the column names by getting the keys of the first row
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$columns = @array_keys($rows[0]);
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$insertRows = [];
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// Create the insert statements
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foreach ($rows as $row)
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{
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$row = array_values($row);
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// Quote strings
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$row = array_map(static fn ($r) => is_string($r) ? $driver->quote($r) : $r, $row);
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$row = array_map('trim', $row);
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$rowString = 'INSERT INTO `' . trim((string) $t) . '` (`' . implode('`,`', $columns) . '`) VALUES (' . implode(',', $row) . ');';
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$row = NULL;
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$insertRows[] = $rowString;
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}
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$outputSql .= "\n\n" . implode("\n", $insertRows) . "\n";
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}
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return $outputSql;
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}
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}
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