public List <BaseChannelData> ReadManyBase(Expression <Func <Channel, bool> > filter = null)
{
if (filter == null)
{
filter = x => true;
}
List <Channel> fetchedChannels = ReadMany(filter);
MessageCrud messageCrud = new MessageCrud();
var baseChannels = new List <BaseChannelData>();
foreach (Channel channel in fetchedChannels)
{
Message.Message lastMessage = messageCrud.ReadLatest(channel._id);
baseChannels.Add(channel.ToBaseChannelData(lastMessage));
}
return(baseChannels);
}
