public async Task <Unit> Handle(CartRecordQuantityMessage request, CancellationToken cancellationToken)
{
var cart = await _db.Carts.FindAsync(new object[] { request.CartId }, cancellationToken);
if (cart == null)
{
throw new InvalidOperationException($"Cart not found: id {request.CartId}");
}
if (cart.Records == null)
{
cart.Records = new Dictionary <int, int>();
}
if (!cart.Records.ContainsKey(request.ProdId))
{
cart.Records.Add(request.ProdId, request.Quantity);
}
else
{
cart.Records[request.ProdId] = request.Quantity;
}
// TODO: добавить проверку изменения Dictionary (сам EF Core не работает с Dictionary)
_db.Entry(cart).Property(e => e.Records).IsModified = true;
if (request.SaveChanges)
{
await _db.SaveChangesAsync(cancellationToken);
}
return(await Unit.Task);
}
public async Task <Unit> Handle(CartRecordRemoveMessage request, CancellationToken cancellationToken)
{
var cart = await _db.Carts.FindAsync(new object[] { request.CartId }, cancellationToken);
if (cart == null)
{
throw new InvalidOperationException($"Cart not found: id {request.CartId}");
}
if (cart.Records == null)
{
cart.Records = new Dictionary <int, int>();
}
if (cart.Records.ContainsKey(request.ProdId))
{
cart.Records.Remove(request.ProdId);
}
if (request.SaveChanges)
{
await _db.SaveChangesAsync(cancellationToken);
}
return(await Unit.Task);
}
public async Task <TEntity> Handle(BaseDeleteCommand <TEntity> request, CancellationToken cancellationToken)
{
var result = _set.Remove(request.Entity);
if (request.SaveChanges)
{
await _db.SaveChangesAsync(cancellationToken);
}
return(await Task.FromResult(result.Entity));
}
public async Task <RegistrationResponse> Handle(RegistrationRequest request, CancellationToken cancellationToken)
{
var user = await _dbUser.FindAsync(request.Data.Id);
if (user != null)
{
return(new RegistrationResponse(false));
}
user = request.Data;
user.Id = 0;
user.Role = 0;
_dbUser.Add(user);
await _db.SaveChangesAsync();
return(await Task.FromResult(new RegistrationResponse(true)));
}