商品图片上传--增加判断过长

app/Admin/Forms/v3/GoodsImageForm.php

@@ -30,7 +30,14 @@ class GoodsImageForm extends Form implements LazyRenderable
         $coverImg= $input['cover_img'];
         $bannerImg= $input['img_banner'];
         
-        if($goodsId > 0 && !empty($coverImg) && strlen($coverImg) < 200){
+        if($goodsId > 0 && !empty($coverImg)){
+            $lastLen = strrpos($coverImg,',');
+            if($lastLen != false){
+                $coverImg = substr($coverImg,$lastLen+1);
+            }
+            if(strlen($coverImg) > 200){
+                return $this->error('上传图片名称过长');
+            }
             $data = ['cover_img' => $coverImg];
             $res1 = GoodsModel::where('id',$goodsId)->update($data); 
         }