Question

I have two objects: Poll and PollIp (one-to-many).
I want to select all polls that not have concrete Ip address. How can I do this?
My code:

public Poll GetNextPoll(string ipAddress)
{
  return Database.Polls
    .Where(p => p.IsPublish.Value && p.PollIps.Any(i => i.IpAdress != ipAddress))
    .FirstOrDefault();
}

Thanks

EDIT
In the DB I have following:

Poll:

id    Name     ...   

1     Poll1  
2     Poll2

PollIp

PollId      IpAdress   
1           ::1 (it's my IP)

And, query must return Poll with id equal 2, because in the PollIp no PollId with 2

Answer 1

public IEnumerable<Poll> GetPolls(string ipAddress)
{
    return Database.Polls.Where(p => p.PollIps.All(i => i.IpAdress != ipAddress))
}