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-rw-r--r--activerecord/lib/active_record/reflection.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index d4f4d593c6..c380b5c029 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -153,6 +153,10 @@ module ActiveRecord
# Holds all the meta-data about an aggregation as it was specified in the
# Active Record class.
class AggregateReflection < MacroReflection #:nodoc:
+ def mapping
+ mapping = options[:mapping] || [name, name]
+ mapping.first.is_a?(Array) ? mapping : [mapping]
+ end
end
# Holds all the meta-data about an association as it was specified in the