本地应用Rails核心修复

我在Rails 4.1.4中遇到了一个bug,最近通过以下方式在Rails核心中修复了该bug: Fix potenital infinite recursion in changed_for_autosave? #16640

在升级到具有此功能的Rails版本之前,如何在本地临时修补此修补程序?修复方法是对activerecord/lib/active_record/autosave_association.rb的更改

我已经有一个AR::Base的扩展,我通过 ActiveRecord::Base.send(:include, ActiveRecordExtension)

我尝试使用更改的方法在该文件中为AutosaveAssociation内联添加模块。

使现代化

config/intializers/01_extensions.rb

require "active_record_extension"

活动记录扩展.rb

module ActiveRecordExtension
  extend ActiveSupport::Concern
  module ClassMethods
  ...
  end

  module AutosaveAssociation
    def nested_records_changed_for_autosave?
      return false if @_nested_records_changed_for_autosave_already_called ||= false
      @_nested_records_changed_for_autosave_already_called = true
      begin
        self.class._reflections.values.any? do |reflection|
          if reflection.options[:autosave]
            association = association_instance_get(reflection.name)
            association && Array.wrap(association.target).any? { |a| a.changed_for_autosave? }
          end
        end
      ensure
        @_nested_records_changed_for_autosave_already_called = false
      end
    end
  end # module Autosave

end
ActiveRecord::Base.send(:include, ActiveRecordExtension)