Merge PR #3421 branch 'migrate-command-enhancement' of https://github.com/creocoder/yii2

framework/CHANGELOG.md

@@ -52,6 +52,7 @@ Yii Framework 2 Change Log
 - Enh: Added `yii\console\Controller::EXIT_CODE_NORMAL` and `yii\console\Controller::EXIT_CODE_ERROR` constants (samdark)
 - Enh: `yii\console\MigrateController` now returns `yii\console\Controller::EXIT_CODE_ERROR` in case of failed migration (samdark)
 - Enh: Added method ErrorHandler::unregister() for unregistering the ErrorHandler (cebe)
+- Enh: Added `all` option to `MigrateController::actionDown()` action (creocoder, umneeq)
 - Chg #2913: RBAC `DbManager` is now initialized via migration (samdark)
 - Chg #3036: Upgraded Twitter Bootstrap to 3.1.x (qiangxue)
 - Chg #3175: InvalidCallException, InvalidParamException, UnknownMethodException are now extended from SPL BadMethodCallException (samdark)

framework/console/controllers/MigrateController.php

@@ -193,6 +193,7 @@ class MigrateController extends Controller
      * ~~~
      * yii migrate/down     # revert the last migration
      * yii migrate/down 3   # revert the last 3 migrations
+     * yii migrate/down all # revert all migrations
      * ~~~
      *
      * @param integer $limit the number of migrations to be reverted. Defaults to 1,
@@ -203,9 +204,13 @@ class MigrateController extends Controller
      */
     public function actionDown($limit = 1)
     {
-        $limit = (int) $limit;
-        if ($limit < 1) {
-            throw new Exception("The step argument must be greater than 0.");
+        if ($limit === 'all') {
+            $limit = null;
+        } else {
+            $limit = (int) $limit;
+            if ($limit < 1) {
+                throw new Exception("The step argument must be greater than 0.");
+            }
         }
 
         $migrations = $this->getMigrationHistory($limit);