'datetime', 'audit_time' => 'datetime', 'delivery_time' => 'datetime', 'print_time' => 'datetime', 'sync_time' => 'datetime', ]; public function platformOrder() { return $this->belongsTo(PlatformOrder::class); } public function items() { return $this->hasMany(OrderItem::class, 'order_id'); } public function deliveryRecord() { return $this->hasOne(DeliveryRecord::class, 'order_id'); } public function auditLogs() { return $this->hasMany(AuditLog::class, 'order_id'); } }