How to create a conditional user profile view?

Rails
1

Hi,
I’m developing a very simple social network game where users guess other
users’ age by just looking one profile picture.
Everything seems to be very simple except for one thing. I want the use
case to be the following:

  1. I am user A.
  2. I VIEW user B nickname and picture but I cannot see the user B’s AGE.
  3. In that same page, I SEND my AGE guess of user B.
  4. SYSTEM thanks me and SHOWS user B’s profile with AGE and all other
    information.
    What is the best practice to create a model that user A can only see
    user B’s age after sending his age guess?
    I though of using flag-variable but I’m bit confused.
    Option 1:
  • Create model User with voted_user_id. This variable starts null and
    only gets number after voting for user B & others.
    Option 2:
  • Create a new model called Handshake. User has_many Handshakes.
    Handshake has two variables user_see_id and user_voted_id. User_see_id
    is the User A in the use case and user_voted_id is the user B.
    Handshake’s variables are only created at stage 3 (above paragraph). So,
    the system will make a check to see if Handshake was created and if yes,
    it shows the age otherwise it shows a link for guessing.
    Option 3:
  • Any other simpler idea?