/// <summary>
/// Unsubscribes the specified user from the specified thread.
/// </summary>
/// <param name="threadID">The thread ID.</param>
/// <param name="userID">The user ID.</param>
/// <returns>true if delete succeeded, false otherwise</returns>
public static bool RemoveSingleSubscription(int threadID, int userID)
{
ThreadSubscriptionEntity subscription = ThreadGuiHelper.GetThreadSubscription(threadID, userID);
if (subscription != null)
{
// there's a subscription, delete it
return(subscription.Delete());
}
else
{
return(true);
}
}
/// <summary>
/// Subscribes the user specified to the thread specified for notifications. A transaction can be specified to save the information inside the
/// transaction specified. If the user is already subscribed to this thread, nothing is done
/// </summary>
/// <param name="threadID">The thread ID.</param>
/// <param name="userID">The user ID.</param>
/// <param name="transactionToUse">The transaction to use. If no transaction is specified, no transaction is created</param>
/// <returns></returns>
public static bool AddThreadToSubscriptions(int threadID, int userID, Transaction transactionToUse)
{
// check if this user is already subscribed to this thread. If not, add a new subscription.
ThreadSubscriptionEntity subscription = ThreadGuiHelper.GetThreadSubscription(threadID, userID, transactionToUse);
if (subscription == null)
{
// user isn't yet subscribed, add the subscription
subscription = new ThreadSubscriptionEntity();
subscription.UserID = userID;
subscription.ThreadID = threadID;
if (transactionToUse != null)
{
transactionToUse.Add(subscription);
}
return(subscription.Save());
}
// already subscribed, no-op.
return(true);
}
/// <summary>
/// Checks if thread is already subscribed. If so, true is returned otherwise false.
/// </summary>
/// <param name="userID">The user ID.</param>
/// <param name="threadID">The thread ID.</param>
/// <returns>true if the user is already subscribed to this thread otherwise false</returns>
public static bool CheckIfThreadIsAlreadySubscribed(int userID, int threadID)
{
return(ThreadGuiHelper.GetThreadSubscription(threadID, userID) != null);
}