public static async Task <IActionResult> GetRegister <T>(
this ContestControllerBase <T> that,
string homePage)
where T : class, IContestContext
{
if (that.Contest.Team != null)
{
that.StatusMessage = "Already registered";
return(that.RedirectToAction(homePage));
}
var context = that.CreateRegisterProviderContext();
that.ViewBag.Context = context;
var items = new List <(IRegisterProvider, object)>();
foreach (var(_, provider) in RPBinderAttribute.Get(that.HttpContext))
{
if (provider.JuryOrContestant)
{
continue;
}
if (!await provider.IsAvailableAsync(context))
{
continue;
}
var input = await provider.CreateInputModelAsync(context);
items.Add((provider, input));
}
if (items.Count == 0)
{
that.StatusMessage = "Registration is not for you.";
return(that.RedirectToAction(homePage));
}
return(that.View("Register", items));
}