diff --git a/catch/wechat/controller/Graphic.php b/catch/wechat/controller/Graphic.php
index 4ff7fca..55d07a5 100644
--- a/catch/wechat/controller/Graphic.php
+++ b/catch/wechat/controller/Graphic.php
@@ -51,7 +51,7 @@ class Graphic extends CatchController
         return CatchResponse::success($this->graphic->storeBy($request->param()));
     }
 
-    public function update($id, Request $request)
+    public function update($id, CatchRequest $request)
     {
         return CatchResponse::success($this->graphic->updateBy($id, $request->param()));
     }
diff --git a/catch/wechat/repository/WechatGraphicRepository.php b/catch/wechat/repository/WechatGraphicRepository.php
index 512b012..782b79e 100644
--- a/catch/wechat/repository/WechatGraphicRepository.php
+++ b/catch/wechat/repository/WechatGraphicRepository.php
@@ -111,22 +111,26 @@ class WechatGraphicRepository extends CatchRepository
      */
     public function updateBy(int $id, array $data)
     {
-        $articles = $data['articles'];
-        $this->wechatGraphic->startTrans();
-        $updateStatus = true;
-        foreach ($articles as $article) {
-            $id = $article['id'];
-            unset($article['id']);
-            if ($this->wechatGraphic->where('id', $id)
-                 ->update($article) === false) {
-                $updateStatus = false;
-                break;
+        try {
+            $this->wechatGraphic->startTrans();
+            if (!parent::deleteBy($id)) {
+                throw new FailedException('更新失败');
             }
-        }
 
-        if (!$updateStatus) {
+            if ($this->wechatGraphic->where('parent_id', $id)->find() && !$this->wechatGraphic->where('parent_id', $id)->delete()) {
+                throw new FailedException('更新失败');
+            }
+
+            foreach ($data['articles'] as &$article) {
+                unset($article['id']);
+            }
+
+            if ($this->storeBy($data) === false) {
+                throw new FailedException('更新失败');
+            }
+        } catch (\Exception $exception) {
             $this->wechatGraphic->rollback();
-            throw new FailedException('更新失败');
+            throw new FailedException($exception->getMessage());
         }
 
         $this->wechatGraphic->commit();