//Only place where we supposed to be mutating our data
protected override void OnDispatch(Payload <ActionTypes> payload)
{
switch (payload.ActionType)
{
case ActionTypes.UpsertItem:
//We will wait for OtherStore's OnDispatch method to be executed before continuing here
WaitFor(new string[] { App.OtherStore.DispatchToken });
//We also can test its state
if (!App.OtherStore.HasChanged)
{
break;
}
var toUpsertItem = payload.Data as Item;
var existingItem = Data.FirstOrDefault(t => t.Id == toUpsertItem.Id);
if (existingItem == null)
{
Data.Add(toUpsertItem);
HasChanged = true;
ItemUpserted?.Invoke(this, DataEventArgs <Item> .From(toUpsertItem));
return;
}
Data.Remove(existingItem);
Data.Add(toUpsertItem);
HasChanged = true;
ItemUpserted?.Invoke(this, DataEventArgs <Item> .From(toUpsertItem));
//Emit changes to the ViewModels that are subscribing
break;
case ActionTypes.GetItems:
var newItems = payload.Data as IList <Item>;
Data.Clear();
foreach (var item in newItems)
{
Data.Add(item);
}
HasChanged = true;
ItemsFetched?.Invoke(this, DataEventArgs <IList <Item> > .From(newItems));
break;
case ActionTypes.RemoveItem:
var toRemoveItem = payload.Data as Item;
Data.Remove(toRemoveItem);
HasChanged = true;
ItemRemoved?.Invoke(this, DataEventArgs <Item> .From(toRemoveItem));
break;
case ActionTypes.Failure:
break;
}
}
protected override void OnDispatch(Payload <ActionTypes> payload)
{
switch (payload.ActionType)
{
case ActionTypes.UpsertItem:
//Test raise circular dependency error
//WaitFor(new List<string> { App.ItemStore.DispatchToken });
var item = new Item {
Id = "Test1", Description = "Should be inserted first", Text = "Test"
};
Data.Add(item);
HasChanged = true;
ItemUpserted?.Invoke(this, DataEventArgs <Item> .From(item));
break;
default:
break;
}
}