StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Rails: validate uniqueness of two columns (together)
| Author | Votes | Δ |
|---|---|---|
| K M Rakibul Islam | 5 | +1.90 |
| tompave | 3 | -1.50 |
Last visited: Mar 21, 2016, 10:47:44 PM