diff options
| -rw-r--r-- | activerecord/lib/active_record/base.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index fd52038647..5a62a29ddb 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -1900,6 +1900,18 @@ MSG private + # Under Ruby 1.9, Array#flatten will call #to_ary (recursively) on each of the elements + # of the array, and then rescues from the possible NoMethodError. If those elements are + # ActiveRecord::Base's, then this triggers the various method_missing's that we have, + # which significantly impacts upon performance. + # + # So we can avoid the method_missing hit by explicitly defining #to_ary as nil here. + # + # See also http://tenderlovemaking.com/2011/06/28/til-its-ok-to-return-nil-from-to_ary/ + def to_ary # :nodoc: + nil + end + def set_serialized_attributes sattrs = self.class.serialized_attributes |