async Task <ResourceCollection <Transaction> > ITransactionReader.GetAll(
Guid userId,
DateTimeOffset from,
DateTimeOffset to)
{
var transactionCollections = new List <ResourceCollection <Transaction> >();
var accounts = await((IAccountReader)this).GetAll(userId);
foreach (var account in accounts.Items)
{
var accountTransactions = await GetAll(userId, account.Id, from, to);
transactionCollections.Add(accountTransactions);
}
return(transactionCollections.Aggregate(ResourceCollection <Transaction> .Empty(), (acc, curr) =>
{
var items = new List <Transaction>();
items.AddRange(acc.Items);
items.AddRange(curr.Items);
return new ResourceCollection <Transaction>(items, acc.Count + curr.Count);
}));
}
