$admin->id, 'user_name' => $admin->name ?? '', 'user_mobile' => $admin->mobile ?? '', 'order_id' => $order_id, 'agreement_id' => $agreement_id, 'remark' => $remark ]; self::create($data); } public function agreement() { return $this->hasOne(Agreement::class, 'id', 'agreement_id'); } }