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Merge pull request #26306 from kamipo/remove_under_ruby-1.9 

Remove "Under Ruby 1.9" [ci skip]
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Kasper Timm Hansen 2016-08-28 08:53:35 +02:00 committed by GitHub
parent cec60d3989 73b8823a93
commit 7a65dc6fe3
1 changed files with 9 additions and 9 deletions
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18
activerecord/lib/active_record/core.rb
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@ -541,15 +541,15 @@ module ActiveRecord
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.html
def to_ary # :nodoc:
# +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.html
def to_ary
nil
end