public async Task <CarDto> Handle(UpdateCarCommand request, CancellationToken cancellationToken)
{
var car = await context.Cars.FirstOrDefaultAsync(c => c.PublicId == request.Id, cancellationToken);
if (car == null)
{
throw new CarNotFoundException(request.Id);
}
mapper.Map(request, car);
context.Cars.Update(car);
try
{
await context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateException)
{
var makeModelExists = await context.Cars
.AnyAsync(c => c.PublicId != request.Id && c.Make == request.Make && c.Model == request.Model && c.Power == request.Power, cancellationToken);
if (makeModelExists)
{
throw new CarExistsException(request.Make, request.Model, request.Power);
}
throw;
}
return(mapper.Map <CarDto>(car));
}
public async Task <CarDto> Handle(CreateCarCommand request, CancellationToken cancellationToken)
{
var car = mapper.Map <Car>(request);
context.Cars.Add(car);
try
{
await context.SaveChangesAsync(cancellationToken);
}
catch (DbUpdateException)
{
var carExists = await context.Cars
.AnyAsync(c => c.Make == request.Make && c.Model == request.Model && c.Power == request.Power, cancellationToken);
if (carExists)
{
throw new CarExistsException(request.Make, request.Model, request.Power);
}
throw;
}
return(mapper.Map <CarDto>(car));
}
public async Task <Unit> Handle(DeleteCarCommand request, CancellationToken cancellationToken)
{
var car = await context.Cars.FirstOrDefaultAsync(c => c.PublicId == request.Id, cancellationToken);
if (car != null)
{
context.Cars.Remove(car);
await context.SaveChangesAsync(cancellationToken);
}
return(Unit.Value);
}