129 lines
2.7 KiB
Plaintext
129 lines
2.7 KiB
Plaintext
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<?php
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/**
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* Query
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*
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* Free Query Builder / Database Abstraction Layer
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*
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* @package Query
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012 - 2014
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* @link https://github.com/aviat4ion/Query
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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namespace Query\Driver;
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/**
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* MySQL-specific backup, import and creation methods
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*
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* @package Query
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* @subpackage Drivers
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* @method array get_dbs()
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* @method mixed driver_query(string $sql, bool $filtered_index=TRUE)
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* @method array get_system_tables()
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* @method array get_tables()
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* @method mixed query(string $sql)
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* @method string quote(string $str)
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*/
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class MySQL_Util extends Abstract_Util {
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/**
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* Create an SQL backup file for the current database's structure
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*
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* @return string
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*/
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public function backup_structure()
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{
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$string = array();
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// Get databases
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$dbs = $this->get_dbs();
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foreach($dbs as &$d)
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{
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// Skip built-in dbs
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if ($d == 'mysql') continue;
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// Get the list of tables
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$tables = $this->driver_query("SHOW TABLES FROM `{$d}`", TRUE);
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foreach($tables as $table)
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{
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$array = $this->driver_query("SHOW CREATE TABLE `{$d}`.`{$table}`", FALSE);
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$row = current($array);
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if ( ! isset($row['Create Table'])) continue;
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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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/**
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* Create an SQL backup file for the current database's data
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*
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* @param array $exclude
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* @return string
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*/
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public function backup_data($exclude=array())
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{
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$tables = $this->get_tables();
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// Filter out the tables you don't want
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if( ! empty($exclude))
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{
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$tables = array_diff($tables, $exclude);
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}
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$output_sql = '';
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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 = $this->query($sql);
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$rows = $res->fetchAll(\PDO::FETCH_ASSOC);
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// Skip empty tables
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if (count($rows) < 1) continue;
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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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$insert_rows = array();
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// Create the insert statements
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foreach($rows as $row)
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{
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$row = array_values($row);
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// Workaround for Quercus
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foreach($row as &$r)
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{
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$r = $this->quote($r);
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}
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$row = array_map('trim', $row);
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$row_string = 'INSERT INTO `'.trim($t).'` (`'.implode('`,`', $columns).'`) VALUES ('.implode(',', $row).');';
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$row = NULL;
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$insert_rows[] = $row_string;
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}
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$output_sql .= "\n\n".implode("\n", $insert_rows)."\n";
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}
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return $output_sql;
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}
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}
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// End of mysql_util.php
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