silverstripe-framework/dev/install/DatabaseConfigurationHelper.php

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<?php
/**
* Interface for database helper classes.
* @package framework
*/
interface DatabaseConfigurationHelper {
/**
* Ensure that the database function for connectivity is available.
* If it is, we assume the PHP module for this database has been setup correctly.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return boolean
*/
public function requireDatabaseFunctions($databaseConfig);
/**
* Ensure that the database server exists.
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('okay' => true, 'error' => 'details of error')
*/
public function requireDatabaseServer($databaseConfig);
/**
* Ensure a database connection is possible using credentials provided.
* The established connection resource is returned with the results as well.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('okay' => true, 'connection' => mysql link, 'error' => 'details of error')
*/
public function requireDatabaseConnection($databaseConfig);
/**
* Ensure that the database connection is able to use an existing database,
* or be able to create one if it doesn't exist.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('okay' => true, 'existsAlready' => 'true')
*/
public function requireDatabaseOrCreatePermissions($databaseConfig);
/**
* Ensure we have permissions to alter tables.
*
* @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
* @return array Result - e.g. array('okay' => true, 'applies' => true), where applies is whether
* the test is relevant for the database
*/
public function requireDatabaseAlterPermissions($databaseConfig);
}