'required|array|min:1', 'items.*.id' => 'required|integer|exists:positions,id', 'items.*.sort_order' => 'required|integer|min:0', ]; } public function messages(): array { return [ 'items.required' => __('validation.required', ['attribute' => '항목']), 'items.*.id.required' => __('validation.required', ['attribute' => 'ID']), 'items.*.id.exists' => __('validation.exists', ['attribute' => 'ID']), 'items.*.sort_order.required' => __('validation.required', ['attribute' => '정렬순서']), ]; } }