public Task <List <CurrencyModel> > HandleAsync(ListAllCurrency query)
{
using (ReadModelContext db = readModelContextFactory.Create())
{
return(db.Currencies
.WhereUserKey(query.UserKey)
.Where(c => !c.IsDeleted)
.Select(c => new CurrencyModel(c.UniqueCode, c.Symbol, c.IsDefault))
.ToListAsync());
}
}
private async Task EnsureListAsync(HttpQueryDispatcher.Next next, ListAllCurrency listAll)
{
if (models.Count == 0)
{
if (listAllTask == null)
{
listAllTask = LoadAllAsync(listAll, next);
}
await listAllTask;
listAllTask = null;
}
}
private async Task LoadAllAsync(ListAllCurrency listAll, HttpQueryDispatcher.Next next)
{
models.Clear();
if (!network.IsOnline)
{
var items = await localStorage.LoadAsync();
if (items != null)
{
models.AddRange(items);
return;
}
}
models.AddRange((List <CurrencyModel>) await next(listAll));
await localStorage.SaveAsync(models);
}
private async Task LoadAllAsync(HttpQueryDispatcher dispatcher, HttpQueryDispatcher.Next next, ListAllCurrency listAll)
{
models.Clear();
if (!serverConnection.IsAvailable)
{
var items = await localStorage.LoadAsync();
if (items != null)
{
models.AddRange(items);
return;
}
}
if (dispatcher != null)
{
models.AddRange(await dispatcher.QueryAsync(listAll));
}
else
{
models.AddRange((List <CurrencyModel>) await next(listAll));
}
await localStorage.SaveAsync(models);
}
private async Task LoadAllAsync(ListAllCurrency listAll, HttpQueryDispatcher.Next next)
{
models.Clear();
models.AddRange((List <CurrencyModel>) await next(listAll));
}
private async Task EnsureListAsync(HttpQueryDispatcher dispatcher, HttpQueryDispatcher.Next next, ListAllCurrency listAll)
{
if (models.Count == 0)
{
if (listAllTask == null)
{
listAllTask = LoadAllAsync(dispatcher, next, listAll);
}
try
{
await listAllTask;
}
finally
{
listAllTask = null;
}
}
}
