Query/drivers/firebird/firebird_util.php

108 lines
2.4 KiB
PHP

<?php
/**
* Query
*
* Free Query Builder / Database Abstraction Layer
*
* @package Query
* @author Timothy J. Warren
* @copyright Copyright (c) 2012 - 2014
* @link https://github.com/aviat4ion/Query
* @license http://philsturgeon.co.uk/code/dbad-license
*/
// --------------------------------------------------------------------------
/**
* Firebird-specific backup, import and creation methods
*
* @package Query
* @subpackage Drivers
* @method array get_system_tables()
* @method array get_tables()
* @method object query(string $sql)
*/
class Firebird_Util extends DB_Util {
/**
* Create an SQL backup file for the current database's structure
* @codeCoverageIgnore
* @return string
*/
public function backup_structure()
{
// TODO Implement Backup structure function
return '';
}
// --------------------------------------------------------------------------
/**
* Create an SQL backup file for the current database's data
*
* @codeCoverageIgnore
* @param array $exclude
* @param bool $system_tables
* @return string
*/
public function backup_data($exclude=array(), $system_tables=FALSE)
{
// Determine which tables to use
if($system_tables == TRUE)
{
$tables = array_merge($this->get_system_tables(), $this->get_tables());
}
else
{
$tables = $this->get_tables();
}
// Filter out the tables you don't want
if( ! empty($exclude))
{
$tables = array_diff($tables, $exclude);
}
$output_sql = '';
// Get the data for each object
foreach($tables as $t)
{
$sql = 'SELECT * FROM "'.trim($t).'"';
$res = $this->query($sql);
$obj_res = $res->fetchAll(PDO::FETCH_ASSOC);
// Don't add to the file if the table is empty
if (count($obj_res) < 1) continue;
// Nab the column names by getting the keys of the first row
$columns = @array_keys($obj_res[0]);
$insert_rows = array();
// Create the insert statements
foreach($obj_res as $row)
{
$row = array_values($row);
// Quote values as needed by type
if(stripos($t, 'RDB$') === FALSE)
{
$row = array_map(array(&$this, 'quote'), $row);
$row = array_map('trim', $row);
}
$row_string = 'INSERT INTO "'.trim($t).'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');';
$row = NULL;
$insert_rows[] = $row_string;
}
$output_sql .= "\n\nSET TRANSACTION;\n".implode("\n", $insert_rows)."\nCOMMIT;";
}
return $output_sql;
}
}
// End of firebird_util.php