public static bool IsUserInGroup(this IMessangerRepository repository, ICache cache, MessangerUser user, MessangerGroup group)
{
bool? cached = cache.IsUserInGroup(user, group);
if (cached == null)
{
//TODO: resolve issue here
cached = repository.IsUserInGroup(user, group);
cache.SetUserInGroup(user, group, cached.Value);
}
return cached.Value;
}
