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<?php
/**
*
* @package db
* @copyright (c) 2011 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License v2
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* Abstract base class for database migrations
*
* Each migration consists of a set of schema and data changes to be implemented
* in a subclass. This class provides various utility methods to simplify editing
* a phpBB.
*
* @package db
*/
abstract class phpbb_db_migration
{
protected $config;
protected $db;
protected $db_tools;
protected $table_prefix;
protected $phpbb_root_path;
protected $php_ext;
protected $errors;
/**
* Migration constructor
*
* @param \Symfony\Component\DependencyInjection\ContainerInterface $container Container supplying dependencies
*/
public function phpbb_db_migration(\Symfony\Component\DependencyInjection\ContainerInterface $container)
{
$this->config = $this->container->get('config');
$this->db = $this->container->get('dbal.conn');
$this->db_tools = $this->container->get('dbal.tools');
$this->table_prefix = $this->container->getParameters('core.table_prefix');
$this->phpbb_root_path = $this->container->getParameters('core.root_path');
$this->php_ext = $this->container->getParameters('core.php_ext');
$this->errors = array();
}
/**
* Defines other migrationsto be applied first (abstract method)
*
* @return array An array of migration class names
*/
public function depends_on()
{
return array();
}
/**
* Updates the database schema by providing a set of change instructions
*
* @return array
*/
public function update_schema()
{
return array();
}
/**
* Updates data by returning a list of instructions to be executed
*
* @return array
*/
public function update_data()
{
}
/**
* Wrapper for running queries to generate user feedback on updates
*/
protected function sql_query($sql)
{
if (defined('DEBUG'))
{
echo "<br />\n{$sql}\n<br />";
}
$this->db->sql_return_on_error(true);
if ($sql === 'begin')
{
$result = $this->db->sql_transaction('begin');
}
else if ($sql === 'commit')
{
$result = $this->db->sql_transaction('commit');
}
else
{
$result = $this->db->sql_query($sql);
if ($this->db->sql_error_triggered)
{
$this->errors[] = array(
'sql' => $this->db->sql_error_sql,
'code' => $this->db->sql_error_returned,
);
}
}
$this->db->sql_return_on_error(false);
return $result;
}
}
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