Update

app/Endpoint/Api/Http/Controllers/ShoppingCartItemController.php

@@ -67,10 +67,7 @@ class ShoppingCartItemController extends Controller
             'qty' => ['bail', 'required', 'int', 'min:1'],
         ]);
 
-        $item = $request->user()->shoppingCartItems()->find($id);
-
-        if ($item === null) {
-        }
+        $item = $request->user()->shoppingCartItems()->findOrFail($id);
 
         $item->update($input);
 

resources/lang/zh_CN/models.php

@@ -3,9 +3,11 @@
 use App\Models\Address;
 use App\Models\ProductSku;
 use App\Models\ProductSpu;
+use App\Models\ShoppingCartItem;
 
 return [
     Address::class => '地址',
     ProductSpu::class => '商品',
     ProductSku::class => '商品',
+    ShoppingCartItem::class => '商品',
 ];