StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Rails: validate unique combination of 2 columns
| Author | Votes | Δ |
|---|---|---|
| hsgubert | 1 | 0.00 |
Last visited: Sep 14, 2014, 5:07:29 AM
| Author | Votes | Δ |
|---|---|---|
| hsgubert | 1 | 0.00 |