You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1.2 KiB
35 lines
1.2 KiB
<?php |
|
/** |
|
* @link http://www.yiiframework.com/ |
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
* @license http://www.yiiframework.com/license/ |
|
*/ |
|
|
|
namespace yii\db; |
|
|
|
/** |
|
* The MigrationInterface defines the minimum set of methods to be implemented by a database migration. |
|
* |
|
* Each migration class should provide the [[up()]] method containing the logic for "upgrading" the database |
|
* and the [[down()]] method for the "downgrading" logic. |
|
* |
|
* @author Klimov Paul <klimov@zfort.com> |
|
* @since 2.0 |
|
*/ |
|
interface MigrationInterface |
|
{ |
|
/** |
|
* This method contains the logic to be executed when applying this migration. |
|
* @return boolean return a false value to indicate the migration fails |
|
* and should not proceed further. All other return values mean the migration succeeds. |
|
*/ |
|
public function up(); |
|
|
|
/** |
|
* This method contains the logic to be executed when removing this migration. |
|
* The default implementation throws an exception indicating the migration cannot be removed. |
|
* @return boolean return a false value to indicate the migration fails |
|
* and should not proceed further. All other return values mean the migration succeeds. |
|
*/ |
|
public function down(); |
|
}
|
|
|