public void AddUserToGroup(string loginName, long groupId)
{
UserProfile userProfile;
GroupUsers group;
try { userProfile = UsersProfileDao.FindByLoginName(loginName); }
catch (InstanceNotFoundException)
{
throw new UserNotFoundException(loginName);
}
try { group = GroupUsersDao.Find(groupId); }
catch (InstanceNotFoundException)
{
throw new GroupNotFoundException(groupId);
}
if ((group.UsersOnGroup.Contains(userProfile)) || (userProfile.SubscribedGroups.Contains(group)))
{
throw new UserAlreadyInGroupException(loginName);
}
else
{
try
{
group.UsersOnGroup.Add(userProfile);
userProfile.SubscribedGroups.Add(group);
}
catch (NotSupportedException e)
{
throw new InternalProblemException(e);
}
}
GroupUsersDao.Update(group);
UsersProfileDao.Update(userProfile);
}
public void AbandonGroup(string loginName, long groupId)
{
UserProfile user;
GroupUsers group;
try { user = UsersProfileDao.FindByLoginName(loginName); }
catch (InstanceNotFoundException)
{
throw new UserNotFoundException(loginName);
}
try { group = GroupUsersDao.Find(groupId); }
catch (InstanceNotFoundException)
{
throw new GroupNotFoundException(groupId);
}
if (user.userId == group.gr_owner)
{
throw new OwnerGroupAbandonException(groupId, loginName);
}
else
{
user.GroupUsers.Remove(group);
group.UsersOnGroup.Remove(user);
UsersProfileDao.Update(user);
GroupUsersDao.Update(group);
}
}
