public async Task <Unit> Handle(EditTransactionCommand command, CancellationToken token)
{
var category = await _db.Categories
.Where(x => x.Id == command.CategoryId)
.SingleOrDefaultAsync(token);
if (category == null)
{
throw NotFoundException.Create <Category>(x => x.Id, command.CategoryId);
}
var tags = new List <Tag>();
if (command.TagIds != null && command.TagIds.Any())
{
var ids = command.TagIds.ToList();
tags = await _db.Tags
.Where(x => ids.Contains(x.Id))
.ToListAsync(token);
if (command.TagIds.Count != tags.Count)
{
throw NotFoundException.Create <Tag>(x => x.Id,
string.Join(", ", command.TagIds));
}
}
var sourceAccount = await _db.Accounts
.Where(x => x.Id == command.SourceAccountId)
.SingleOrDefaultAsync(token);
if (sourceAccount == null)
{
throw NotFoundException.Create <Account>(x => x.Id, command.SourceAccountId);
}
var destinationAccount = await _db.Accounts
.Where(x => x.Id == command.DestinationAccountId)
.SingleOrDefaultAsync(token);
if (destinationAccount == null)
{
throw NotFoundException.Create <Account>(x => x.Id, command.DestinationAccountId);
}
var transaction = new Transaction(command.Title, command.Date, command.Description, category, command.Amount, sourceAccount, destinationAccount, tags);
_db.Transactions.Attach(transaction);
await _db.SaveChangesAsync(token);
return(default);
public async Task <TransactionModel> Handle(GetTransactionQuery query, CancellationToken token)
{
var transaction = await _db.Transactions
.Specify(new TransactionDetails())
.SingleOrDefaultAsync(x => x.Id == query.Id,
cancellationToken: token);
if (transaction == null)
{
throw NotFoundException.Create <Tag>(x => x.Id, query.Id);
}
return(new TransactionModel(transaction));
}
public async Task <Unit> Handle(DeleteTransactionCommand command, CancellationToken token)
{
var transaction = await _db.Transactions
.SingleOrDefaultAsync(x =>
x.Id == command.Id,
token);
if (transaction == null)
{
throw NotFoundException.Create <Transaction>(x => x.Id, command.Id);
}
_db.Remove(transaction);
await _db.SaveChangesAsync(token);
return(default);