belongsTo('App\Models\Device', 'device_id'); } public function inner_device() { return $this->belongsTo('App\Models\InnerDevice', 'inner_device_id'); } public function device_name() { return $this->belongsTo('App\Models\DeviceName', 'device_name_id'); // return $this->hasOne(InnerDeviceNamesModel::class,'id','device_name_id'); } public function spec() { return $this->belongsTo('App\Models\Spec', 'spec_id'); } public function rent_type() { return $this->belongsTo('App\Models\RentType', 'rent_type_id'); } public function project() { return $this->belongsTo('App\Models\Project', 'project_id'); } public function user() { return $this->belongsTo('App\Models\User', 'user_id'); } public function order() { return $this->belongsTo('App\Models\Order', 'order_id'); } }