StackRating

An Elo-based rating system for Stack Overflow
Home   |   About   |   Stats and Analysis   |   Get a Badge
Answers and rating deltas for

rails validation error nested object undefined method... for nil:NilClass

Author Votes Δ
Marcin KoƂodziej 3 +3.47
byrdEmmanuel 2 +0.91
Julien 0 -3.72
Last visited: Feb 19, 2019, 8:26:47 AM