public class CarPartRespository

    {

        private readonly CarPartDbContext _carPartDbContext;

​

        public CarPartRespository(CarPartDbContext carPartDbContext)

        {

            _carPartDbContext = carPartDbContext;

        }

​

        public async Task<List<CarPartModel>> List()

        {

            return await _carPartDbContext.CarParts.ToListAsync();

        }

​

        public async Task<CarPartModel> Get(int id)

        {

            return await _carPartDbContext.CarParts.FirstOrDefaultAsync(part => part.Id == id);

        }

​

        public async Task Add(CarPartModel carPartModel)

        {

            await _carPartDbContext.CarParts.AddAsync(carPartModel);

            await _carPartDbContext.SaveChangesAsync();

        }

​

        public async Task Delete(int id)

        {

            var part = await Get(id);

            if (part == null)

            {

                return;

            }

​

            _carPartDbContext.Remove(part);

            await _carPartDbContext.SaveChangesAsync();

        }

    }