diff options
| -rw-r--r-- | activerecord/lib/active_record/result.rb | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb index 9ceab2eabc..b8d2cd2866 100644 --- a/activerecord/lib/active_record/result.rb +++ b/activerecord/lib/active_record/result.rb @@ -26,9 +26,15 @@ module ActiveRecord private def hash_rows - @hash_rows ||= @rows.map { |row| - Hash[@columns.zip(row)] - } + @hash_rows ||= + begin + # We freeze the strings to prevent them getting duped when + # used as keys in ActiveRecord::Model's @attributes hash + columns = @columns.map { |c| c.dup.freeze } + @rows.map { |row| + Hash[columns.zip(row)] + } + end end end end |