method

to_ary

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What's this?

to_ary() 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.

Show source

# File activerecord/lib/active_record/core.rb, line 543
    def to_ary # :nodoc:
      nil
    end

to_ary

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