95 lines
2.0 KiB
PHP
95 lines
2.0 KiB
PHP
<?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\Pgsql;
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use PDO;
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use Query\Drivers\AbstractUtil;
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/**
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* Postgres-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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// @TODO Implement Backup function
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return '';
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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 $exclude=[]): string
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{
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$tables = $this->getDriver()->getTables();
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// Filter out the tables you don't want
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if ( ! empty($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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// Get the data for each object
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foreach ($tables as $t)
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{
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$sql = 'SELECT * FROM "' . trim($t) . '"';
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$res = $this->getDriver()->query($sql);
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$objRes = $res->fetchAll(PDO::FETCH_ASSOC);
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// Don't add to the file if the table is empty
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if ((is_countable($objRes) ? count($objRes) : 0) < 1)
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{
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continue;
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}
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$res = NULL;
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// Nab the column names by getting the keys of the first row
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$columns = @array_keys($objRes[0]);
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$insertRows = [];
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// Create the insert statements
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foreach ($objRes as $row)
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{
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$row = array_values($row);
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// Quote values as needed by type
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$row = array_map([$this->getDriver(), 'quote'], $row);
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$row = array_map('trim', $row);
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$rowString = 'INSERT INTO "' . trim($t) . '" ("' . implode('","', $columns) . '") VALUES (' . implode(',', $row) . ');';
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$row = NULL;
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$insertRows[] = $rowString;
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}
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$objRes = NULL;
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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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