public async Task <Guid> Handle(CreateWidgetCommand request, CancellationToken cancellationToken)
{
var currentUserId = currentUserService.GetCurrentUserId();
var application = await context.Applications
.FirstOrDefaultAsync(app => app.Id == request.ApplicationId && app.UserId == currentUserId);
if (application == null)
{
throw new EntityNotFoundException(nameof(Application), request.ApplicationId);
}
var widgetHandlerFactory = new WidgetsHandlerFactory();
var widgetHandler = widgetHandlerFactory.Make(request.WidgetType);
var widget = new Widget(request.Name, application.Id)
{
Type = request.WidgetType.ToString(),
Data = widgetHandler.GetDefaultJson()
};
await context.Widgets.AddAsync(widget);
await context.SaveChangesAsync();
return(widget.Id);
}
public async Task <List <WidgetDetailsVm <T> > > Handle(GetWidgetsQuery <T> request, CancellationToken cancellationToken)
{
var currentUserId = currentUserService.GetCurrentUserId();
var dbWidgets = await(from application in context.Applications
join widget in context.Widgets
on application.Id equals widget.ApplicationId
where request.WidgetsIds.Contains(widget.Id) && application.UserId == currentUserId
select widget)
.AsNoTracking()
.ToListAsync();
var widgetHandlerFactory = new WidgetsHandlerFactory();
var result = new List <WidgetDetailsVm <T> >();
foreach (var dbWidget in dbWidgets)
{
var widgetHandler = widgetHandlerFactory.Make(dbWidget.Type);
var widgetData = new WidgetDetailsVm <T>
{
WidgetData = (T)widgetHandler.FromJson(dbWidget.Data),
Widget = mapper.Map <WidgetDto>(dbWidget)
};
result.Add(widgetData);
}
return(result);
}
public async Task <Unit> Handle(UpdateWidgetCommand <T> request, CancellationToken cancellationToken)
{
var currentUserId = currentUserService.GetCurrentUserId();
var dbWidget = await(from widget in context.Widgets
join application in context.Applications
on widget.ApplicationId equals application.Id
where widget.Id == request.Id && application.UserId == currentUserId
select widget).FirstOrDefaultAsync();
if (dbWidget == null)
{
throw new EntityNotFoundException(nameof(Widget), request.Id);
}
var widgetHandlerFactory = new WidgetsHandlerFactory();
var widgetHandler = widgetHandlerFactory.Make(dbWidget.Type);
dbWidget.Name = request.Name;
dbWidget.Data = widgetHandler.GetJson(request.WidgetData);
context.Widgets.Update(dbWidget);
await context.SaveChangesAsync();
return(Unit.Value);
}
