u

app/Http/Controllers/admin/Keyboard.php

@@ -75,9 +75,9 @@ class Keyboard extends Controller
             $id = request()->input('id');
             $validator = [
                 'id' => ['required', 'integer'],
-                'reply' => 'required|string',
-                'explain' => 'nullable|string',
-                'language' => 'required|string',
+                'reply' => ['required', 'string'],
+                'explain' => ['nullable', 'string', 'max:28'],
+                'language' => ['required', 'string', 'in:zh,vi,en'],
                 'image' => ['nullable', 'url'],
                 'button' => ['nullable', 'string', 'max:100'],
                 'buttons' => ['array'],