Monkey patch for fixing infinite loop in autosave_association

gistfile1.txt

# fixes 'https://github.com/rails/rails/pull/16640'
# add this to lib/patches/active_record/autosave_association.rb
# then in config/environment.rb before initialize! load this file with
# something like:
#  require File.join(File.dirname(__FILE__), '../lib/patches/active_record/autosave_association.rb')
# see https://gist.github.com/mfazekas/cc7792802859d91e3fcb

require 'active_record/autosave_association'

module ActiveRecord
  module AutosaveAssociationInfLoopPatch
    def nested_records_changed_for_autosave?
      @_nested_records_changed_for_autosave_already_called ||= false
      return false if @_nested_records_changed_for_autosave_already_called
      begin
        @_nested_records_changed_for_autosave_already_called = true
        super
      ensure
        @_nested_records_changed_for_autosave_already_called = false
      end
    end
  end
  
  class Base
    prepend AutosaveAssociationInfLoopPatch
  end
end