示例#1
0
        public IActionResult UpdateCity(int id, [FromBody] CityForUpdateDTO cityUpdate)
        {
            var cityModel = CityDataStore.Current.Cities.FirstOrDefault(c => c.Id == id);

            if (cityModel == null)
            {
                return(NotFound());
            }

            cityModel.Name        = cityUpdate.Name;
            cityModel.Description = cityUpdate.Description;

            return(NoContent());
        }
        public IActionResult UpdateCity(int Id, [FromBody] CityForUpdateDTO city)
        {
            // for repeated validations use Fluent Validation

            Debug.WriteLine("update city initiated");
            //deserialise the frombody data and use to create city
            if (city == null)
            {
                return(BadRequest());
            }

            //[maxlength] in DTOs these are data annotation attributes which are contained in ModelState dictionary
            //these are used for data validation, if not valid they will make ModelState invalid
            //in that case body can not be deserialized

            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (!_cityInfoRepository.CityExists(Id))
            {
                return(NotFound());
            }

            var cityToUpdate = _cityInfoRepository.GetCity(Id);

            if (cityToUpdate == null)
            {
                return(NotFound());
            }
            //this overload Map method of Mapper copies the source object content (1st param) into the destination object (2nd param)
            //which is what is required to update the content entity
            AutoMapper.Mapper.Map(city, cityToUpdate);

            //On saving Context, the reference object cityUpdate is automatically populated
            if (!_cityInfoRepository.Save())
            {
                return(StatusCode(500, "Error updating city"));
            }

            return(NoContent());
        }