/// <summary>
/// Saves the after having been loaded within the same remote method.
/// Reloads potentially modified members in the M object to make
/// changes visible in WebSharper.
/// </summary>
/// <typeparam name="M"></typeparam>
/// <param name="stored">The stored.</param>
/// <returns>The VIewState string</returns>
public static string Save <M>(ViewModel <M> stored)
where M : class, IStored <M>, new()
{
stored.SaveMembers(); // Captures members directly mutable on the client side.
stored.LoadMembers(); // Mirrors side effects of methods on M in the ViewModel.
switch (stored.SessionStorage) // guaranteed here, whether overridden or not
{
case Storage.ViewState:
var filter = StorageImplementation.EncryptViewState(Configuration);
stored.SerializeMain(filter); // save locally into the object
return(stored.ViewState);
case Storage.Session:
StorageImplementation.SaveSession(Configuration, HttpContext, stored.Main);
return(null);
case Storage.Database:
StorageImplementation.SaveDatabase(Configuration, HttpContext, stored.Main);
return(null);
default:
throw new NotImplementedException(String.Format(
"Storage {0}", stored.SessionStorage));
}
}
/// <summary>
/// Store the serialized controller to the database. Reference to it is
/// kept in a persistent cookie.
/// </summary>
public static void SaveDatabase(this IPersistentController inst)
{
inst.ViewBag.SessionStorage = ViewBagSessionStorage(inst, Storage.Database);
StorageImplementation.SaveDatabase(inst.Configuration, inst.HttpContext, inst);
}