pdomysql.php
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<?php
/**
* @package Joomla.Platform
* @subpackage Database
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* MySQL export driver for the PDO based MySQL database driver.
*
* @package Joomla.Platform
* @subpackage Database
* @since 3.4
*/
class JDatabaseExporterPdomysql extends JDatabaseExporter
{
/**
* Builds the XML data for the tables to export.
*
* @return string An XML string
*
* @since 3.4
* @throws Exception if an error occurs.
*/
protected function buildXml()
{
$buffer = array();
$buffer[] = '<?xml version="1.0"?>';
$buffer[] = '<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">';
$buffer[] = ' <database name="">';
$buffer = array_merge($buffer, $this->buildXmlStructure());
$buffer[] = ' </database>';
$buffer[] = '</mysqldump>';
return implode("\n", $buffer);
}
/**
* Builds the XML structure to export.
*
* @return array An array of XML lines (strings).
*
* @since 3.4
* @throws Exception if an error occurs.
*/
protected function buildXmlStructure()
{
$buffer = array();
foreach ($this->from as $table)
{
// Replace the magic prefix if found.
$table = $this->getGenericTableName($table);
// Get the details columns information.
$fields = $this->db->getTableColumns($table, false);
$keys = $this->db->getTableKeys($table);
$buffer[] = ' <table_structure name="' . $table . '">';
foreach ($fields as $field)
{
$buffer[] = ' <field Field="' . $field->Field . '"' . ' Type="' . $field->Type . '"' . ' Null="' . $field->Null . '"' . ' Key="' .
$field->Key . '"' . (isset($field->Default) ? ' Default="' . $field->Default . '"' : '') . ' Extra="' . $field->Extra . '"' .
' />';
}
foreach ($keys as $key)
{
$buffer[] = ' <key Table="' . $table . '"' . ' Non_unique="' . $key->Non_unique . '"' . ' Key_name="' . $key->Key_name . '"' .
' Seq_in_index="' . $key->Seq_in_index . '"' . ' Column_name="' . $key->Column_name . '"' . ' Collation="' . $key->Collation . '"' .
' Null="' . $key->Null . '"' . ' Index_type="' . $key->Index_type . '"' .
' Comment="' . htmlspecialchars($key->Comment, ENT_COMPAT, 'UTF-8') . '"' . ' />';
}
$buffer[] = ' </table_structure>';
}
return $buffer;
}
/**
* Checks if all data and options are in order prior to exporting.
*
* @return JDatabaseExporterPdomysql Method supports chaining.
*
* @since 3.4
* @throws Exception if an error is encountered.
*/
public function check()
{
// Check if the db connector has been set.
if (!($this->db instanceof JDatabaseDriverPdomysql))
{
throw new Exception('JPLATFORM_ERROR_DATABASE_CONNECTOR_WRONG_TYPE');
}
// Check if the tables have been specified.
if (empty($this->from))
{
throw new Exception('JPLATFORM_ERROR_NO_TABLES_SPECIFIED');
}
return $this;
}
}