adjusting ExplainAction

Author: klimov-paul

CHANGELOG.md

@@ -17,6 +17,7 @@ Yii Framework 2 mongodb extension Change Log
 - Enh #41: Added `yii\mongodb\Connection::driverOptions` allowing setup of the options for the MongoDB driver (klimov-paul)
 - Enh #57: Added i18n support via `yii\mongodb\i18n\MongoDbMessageSource` (klimov-paul)
 - Enh #69: Fixed log target to display exceptions like DbTarget in Yii core, also avoids problems with Exceptions that contain closures (cebe)
+- Enh #74: Added explain method to `MongoDbPanel` debug panel (webdevsega)
 - Enh #102: `MongoDbTarget` now uses `batchInsert()` while exporting log messages (klimov-paul)
 
 

debug/ExplainAction.php

@@ -1,28 +1,36 @@
 <?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
 
 namespace yii\mongodb\debug;
 
 use yii\base\Action;
-use yii\base\InvalidParamException;
-use yii\debug\panels\DbPanel;
-use yii\helpers\ArrayHelper;
 use yii\helpers\Json;
 use yii\web\HttpException;
 
 /**
  * ExplainAction provides EXPLAIN information for MongoDB queries
+ *
+ * @author Sergey Smirnov <[email protected]>
+ * @since 2.0.5
  */
 class ExplainAction extends Action
 {
     /**
-     * @var DbPanel
+     * @var MongoDbPanel related debug toolbar panel
      */
     public $panel;
 
+
     /**
-     * Runs the action
-     *
-     * @return string result content
+     * Runs the explain action
+     * @param integer $seq
+     * @param string $tag
+     * @return string explain result content
+     * @throws HttpException if requested log not found
      */
     public function run($seq, $tag)
     {
@@ -37,12 +45,12 @@ public function run($seq, $tag)
         $query = $timings[$seq]['info'];
         preg_match('/^.+\((.*)\)$/', $query, $matches);
         if (!isset($matches[1])) {
-            return;
+            return '';
         }
 
         $cursor = $this->getCursorFromQueryLog($matches[1]);
         if (!$cursor) {
-            return;
+            return '';
         }
         $result = $cursor->explain();
 

debug/MongoDbPanel.php

@@ -18,6 +18,12 @@
  */
 class MongoDbPanel extends DbPanel
 {
+    /**
+     * @inheritdoc
+     */
+    public $db = 'mongodb';
+
+
     /**
      * @inheritdoc
      */