Laravel 设置一个表单保存到两个表

Question

我正在尝试使用一种形式来保存两个表。我的表格收集设备“签入/签出”的数据并收集该签入/签出的图片。收集到的字符串数据存储在Traffic表中，而图像数据将存储在Details表中。Traffic签入/签出的条目可以有很多Details。属于Details特定Traffic条目。我的设置方式不断出现BadMethodCallException Call to undefined method Illuminate\Database\Eloquent\Relations\HasMany::detail()错误。这是我的交通控制器：        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);    }我的详细模型    public function traffic()    {        return $this->belongsTo(Traffic::class);    }    public function user()    {        return $this->belongsTo(User::class);    }

Answer 1

由于用户可以拥有许多流量资源，因此您无需指定要将详细信息资源添加到哪个流量资源。您应该在创建新的流量资源时将其分配给一个变量：

$traffic = auth()->user()->traffic()->create([

    'branch' => $data['branch'],

    'io' => $data['io'],

    'make' => $data['make'],

    'model' => $data['model'],

    'sn' => $data['sn'],

    'customer' => $data['customer'],

]);

当您创建新的详细资源时，(might want to change the relationship from detail to details since it suggests many like your hasMany relationship where detail suggets hasOne)您可以调用：

$traffic->detail()->create([

    ...

]);

我还注意到您正在循环遍历数组来创建新的详细资源。实际上有一个createMany()指针函数可以帮助简化该过程。