The signature for `yii\gridview\ActionColumn::urlCreator` is changed - the `$action` parameter is moved to the first

framework/CHANGELOG.md

@@ -38,6 +38,7 @@ Yii Framework 2 Change Log
 - Chg: Renamed `ActiveRecord::getPopulatedRelations()` to `getRelatedRecords()` (qiangxue)
 - Chg: Renamed `attributeName` and `className` to `targetAttribute` and `targetClass` for `UniqueValidator` and `ExistValidator` (qiangxue)
 - Chg: Added `yii\widgets\InputWidget::options` (qiangxue)
+- Chg: The signature for `yii\gridview\ActionColumn::urlCreator` is changed - the `$action` parameter is moved to the first (qiangxue)
 - New #1438: [MongoDB integration](https://github.com/yiisoft/yii2-mongodb) ActiveRecord and Query (klimov-paul)
 - New #1393: [Codeception testing framework integration](https://github.com/yiisoft/yii2-codeception) (Ragazzo)
 

framework/yii/grid/ActionColumn.php

@@ -70,16 +70,16 @@ class ActionColumn extends Column
 	}
 
 	/**
+	 * @param string $action
 	 * @param \yii\db\ActiveRecord $model
 	 * @param mixed $key the key associated with the data model
 	 * @param integer $index
-	 * @param string $action
 	 * @return string
 	 */
-	public function createUrl($model, $key, $index, $action)
+	public function createUrl($action, $model, $key, $index)
 	{
 		if ($this->urlCreator instanceof Closure) {
-			return call_user_func($this->urlCreator, $model, $key, $index, $action);
+			return call_user_func($this->urlCreator, $action, $model, $key, $index);
 		} else {
 			$params = is_array($key) ? $key : ['id' => $key];
 			$route = $this->controller ? $this->controller . '/' . $action : $action;