/// <summary>
/// Saves a <see cref="User"/> model in persistent database asynchronously.
/// <remarks>
/// If this method is consumed, make sure to hook to the <seealso cref="IUserRepository.SaveUserCompleted"/> event of this instance of <see cref="IUserRepository"/>.
/// </remarks>
/// </summary>
/// <param name="user">The <see cref="User"/> instance that needs to be saved in the persistent database.</param>
void IUserRepository.SaveUserAsync(User user)
{
QueueAsyncTask(() =>
{
Exception exception = null;
string message = null;
try
{
//This treachery is for faking a web service call.
Thread.Sleep(2000);
SaveUser(user);
LogUtil.LogInfo("UserRepository",
"IUserRepository.SaveUser",
string.Format("Successfully saved the user{0}.", user.UserId));
}
catch (Exception ex)
{
LogUtil.LogError("UserRepository",
"IUserRepository.SaveUser", ex);
exception = ex;
message = ErrorMessages.ERR_FAILED_TO_SAVE_USER;
}
finally
{
if (null != _saveUserCompleted)
_saveUserCompleted(this, new RepositoryTaskFinishedEventArgs(exception, message));
}
});
}
/// <summary>
/// Saves a <see cref="User"/> model in persistence database.
/// </summary>
/// <param name="user">The <see cref="User"/> instance that needs to be saved in the persistence database.</param>
void IUserRepository.SaveUser(User user)
{
SaveUser(user);
}
/// <summary>
/// Intializes an instance of <see cref="UserViewModel"/>.
/// </summary>
/// <param name="user"></param>
/// <param name="messagingService"> </param>
public UserViewModel(User user, IMessagingService messagingService)
{
if (user == null)
throw new ArgumentNullException("user");
if (messagingService == null)
throw new ArgumentNullException("messagingService");
_messagingService = messagingService;
Entity = user;
//IsUsernameEditable=Entity.UserId <1;
//Initialize commands
ChangeImageCommand = new RelayCommand(ChangeImage);
}
/// <summary>
/// Saves the user in the persistent db.
/// </summary>
/// <param name="user"></param>
private void SaveUser(User user)
{
if (user == null)
throw new ArgumentNullException("user");
using (var session = SessionProvider.SessionFactory.OpenSession())
{
using (var trans = session.BeginTransaction())
{
session.SaveOrUpdate(user);
trans.Commit();
}
}
}
/// <summary>
/// Initializes an instance of <see cref="UserLoggedInEventArgs"/>.
/// </summary>
/// <param name="user">The logge in user model.</param>
public UserLoggedInEventArgs(User user)
{
LoggedInUser = user;
}