void AddViewedMessage(ViewedMessage viewedMessage)
{
this.viewedMessagesById.Add(viewedMessage.MessageId, viewedMessage);
if (viewedMessage.Read)
{
++this.readMessageCount;
}
}
void RemoveViewedMessage(ViewedMessage viewedMessage)
{
if (!this.viewedMessagesById.Remove(viewedMessage.MessageId))
{
throw new KeyNotFoundException();
}
if (viewedMessage.Read)
{
--this.readMessageCount;
}
}
void UpdateViewWithMessage(YamsterMessage message)
{
bool shouldBeInView = false;
if (CompiledFunc != null)
{
var executionContext = new YqlExecutionContext(this.appContext);
executionContext.Message = message;
shouldBeInView = CompiledFunc(executionContext);
}
ViewedMessage viewedMessage = null;
bool isInView = viewedMessagesById.TryGetValue(message.MessageId, out viewedMessage);
bool statisticsChanged = false;
if (isInView)
{
if (!shouldBeInView)
{
this.RemoveViewedMessage(viewedMessage);
NotifyViewChanged(YamsterViewChangeType.ModelLeaveView, message);
// TotalItemCount changed
statisticsChanged = true;
}
else
{
if (message.Read != viewedMessage.Read)
{
this.readMessageCount += message.Read ? +1 : -1;
viewedMessage.Read = message.Read;
statisticsChanged = true;
}
}
}
else
{
if (shouldBeInView)
{
AddViewedMessage(new ViewedMessage(message));
NotifyViewChanged(YamsterViewChangeType.ModelEnterView, message);
// TotalItemCount changed
statisticsChanged = true;
}
}
if (statisticsChanged)
{
NotifyViewChanged(YamsterViewChangeType.StatisticsChanged, null);
}
}
/// <summary>
/// Adds a student Viewed Message.
/// </summary>
/// <param name="alertId">The messageId.</param>
/// <param name="studentId">The studentId.</param>
/// <returns></returns>
public void AddStudentViewedMessage(int messageId, int studentId)
{
try
{
ViewedMessage studentViewedMessage = ObjectMapper.Map <StudentViewedMessageViewModel, Model.Entities.ViewedMessage>(StudentMessageViewModelFactory.CreateStudentViewedMessageModel(messageId, studentId));
StudentViewedMessageManager.Add(studentViewedMessage);
}
catch (Exception ex)
{
ExceptionManager.HandleException(ex, PolicyNameType.ExceptionReplacing);
}
}
