*/ public function rules() { return [ "name" => "required|string|max:50", "address" => "required|string", "email" => "string|email|nullable|unique:suppliers,email", "phone" => "required|numeric|digits_between:12,15|unique:suppliers,phone", "npwp" => "required|numeric|digits_between:15,20|unique:suppliers,npwp", ]; } }