* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* MySQLi export driver.
*
* @since 1.7.0
*/
class JDatabaseExporterMysqli extends JDatabaseExporter
{
/**
* Builds the XML data for the tables to export.
*
* @return string An XML string
*
* @since 1.7.0
* @throws Exception if an error occurs.
*/
protected function buildXml()
{
$buffer = array();
$buffer[] = '';
$buffer[] = '';
$buffer[] = ' ';
$buffer = array_merge($buffer, $this->buildXmlStructure());
$buffer[] = ' ';
$buffer[] = '';
return implode("\n", $buffer);
}
/**
* Builds the XML structure to export.
*
* @return array An array of XML lines (strings).
*
* @since 1.7.0
* @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);
$buffer[] = ' ';
foreach ($fields as $field)
{
$buffer[] = ' Default) ? ' Default="' . $field->Default . '"' : '') . ' Extra="' . $field->Extra . '"' .
' />';
}
foreach ($keys as $key)
{
$buffer[] = ' ';
}
$buffer[] = ' ';
}
return $buffer;
}
/**
* Checks if all data and options are in order prior to exporting.
*
* @return JDatabaseExporterMysqli Method supports chaining.
*
* @since 1.7.0
* @throws Exception if an error is encountered.
*/
public function check()
{
// Check if the db connector has been set.
if (!($this->db instanceof JDatabaseDriverMysqli))
{
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;
}
}