よく使われるメソッド
よく使われるメソッド
よく使われるメソッド
よく使われるメソッド
public async Task <IActionResult> AddCityToCountry(int?countryId, int?cityId) { if (!countryId.HasValue || !cityId.HasValue) { return(BadRequest("Id must be given")); } var added = await _countryRepository.AddCityToCountry(cityId.Value, countryId.Value); if (added) { return(Ok("Added city to country")); } return(BadRequest("Country or city doesn't exist")); }