public ActionResult Index()
{
var login = Models.Authorization.Login;
var user = db.Accounts.FirstOrDefault(m => m.Login == login) as User;
var history = HistoryViewModel.CreateHistory(db, DateTime.Now.AddDays(-7), DateTime.Now, user);
IEnumerable <int> watchedLessons = user.FinishedLessons.Select(m => m.Id);
var courses = db.Courses.ToList().Select(
m => m.ToViewModel(
m.Lessons.Select(
lesson => lesson.ToViewModel(watchedLessons.Any(watchedId => watchedId == lesson.Id)))));
// ^^^^^^^^^^^^^^^^^| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
// (1) (2)
// (1): lesson.ToViewModel(bool isWatched). Creating ViewModel from Enttiy model using extension. Marks it watched/unwatched
// (2): Looking to watchedLessons and returns true if we've found current LessonId
var model = new AccountViewModel()
{
Account = user,
History = history,
Courses = courses
};
return(View(model));
}