add changes sell product

frontend/controllers/ProductController.php

@@ -125,6 +125,24 @@ class ProductController extends Controller
         return $this->redirect(['index']);
     }
 
+    /**
+     */
+    public function actionLookup($query = null)
+    {
+        $result = [];
+    	$product = Product::findProduct($query);
+    	$product = Product::modelToArray($product);
+    	 
+    	$result['product'] = $product;
+    	
+    	\Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
+    	
+    	
+    	
+    	return $result;
+    }
+
+    
     /**
      * Finds the Product model based on its primary key value.
      * If the model is not found, a 404 HTTP exception will be thrown.