diff options
-rw-r--r-- | activerecord/lib/active_record/associations/association_collection.rb | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/associations/association_collection.rb b/activerecord/lib/active_record/associations/association_collection.rb index 5b34ac907c..7cdd91e9b2 100644 --- a/activerecord/lib/active_record/associations/association_collection.rb +++ b/activerecord/lib/active_record/associations/association_collection.rb @@ -332,13 +332,10 @@ module ActiveRecord end def uniq(collection = self) - seen = Set.new - collection.map do |record| - unless seen.include?(record.id) - seen << record.id - record - end - end.compact + seen = {} + collection.find_all do |record| + seen[record.id] = true unless seen.key?(record.id) + end end # Replace this collection with +other_array+ |