我正在嘗試使用一種形式來保存兩個表。我的表格收集設備“簽入/簽出”的數據并收集該簽入/簽出的圖片。收集到的字符串數據存儲在Traffic表中，而圖像數據將存儲在Details表中。Traffic簽入/簽出的條目可以有很多Details。屬于Details特定Traffic條目。我的設置方式不斷出現BadMethodCallException Call to undefined method Illuminate\Database\Eloquent\Relations\HasMany::detail()錯誤。這是我的交通控制器：        auth()->user()->traffic()->create([            'branch' => $data['branch'],            'io' => $data['io'],            'make' => $data['make'],            'model' => $data['model'],            'sn' => $data['sn'],            'customer' => $data['customer'],        ]);        if ($upload['isSuccess']) {            foreach($upload['files'] as $key=>$item) {                $upload['files'][$key] = array(                    auth()->user()->traffic()->detail()->create([                        'extension' => $upload['files'][$key]['extension'],                        'format' => $upload['files'][$key]['format'],                        'file' => 'storage/' . $uploadDir . $upload['files'][$key]['name'],                        'name' => $upload['files'][$key]['name'],                        'size' => $upload['files'][$key]['size'],                        'size2' => $upload['files'][$key]['size2'],                        'title' => $upload['files'][$key]['title'],                        'type' => $upload['files'][$key]['type'],                        'url' => 'http://localhost:8000/storage/' . $uploadDir . $upload['files'][$key]['name'],                    ]));            }        } else {            foreach($upload['warnings'] as $error) {                // echo $error . '<br>';            }        }我的流量模型    public function user()    {        return $this->belongsTo(User::class);    }    public function detail()    {        return $this->hasMany(Detail::class);    }我的詳細模型    public function traffic()    {        return $this->belongsTo(Traffic::class);    }    public function user()    {        return $this->belongsTo(User::class);    }