StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
I only want to validates_presence_of :group if group_id is not nil
| Author | Votes | Δ |
|---|---|---|
| craig.kaminsky | 0 | -0.28 |
| Kalpesh Fulpagare | 0 | +0.28 |
Last visited: Sep 14, 2014, 5:07:29 AM