private void RequireUserByIdIsChannelMember(Guid userId, Guid channelId, string errorMessage)
{
var channelUser = _channelUserRepository.GetByUserIdAndChannelId(userId, channelId);
if (channelUser == null)
{
throw new LogicApiException(errorMessage);
}
}
private void RemoveUserFromChannel(Models.User user, Guid channelId)
{
var channel = _channelRepository.Get(channelId);
var channelUser = _channelUserRepository.GetByUserIdAndChannelId(user.Id, channelId);
_channelUserRepository.Remove(channelUser);
_channelUserStore.RemoveByUserIdAndChannelId(user.Id, channelId);
_channelEventService.AddUserRemovedFromChannelEvent(channel.Group, _authorizedUser, user, channel);
}