require 'active_model'

module ActiveModel::AttributeMethods
  module ClassMethods
    def remove_proxy_call(mod, name)
      mod.module_eval "remove_method(:'#{name}')", __FILE__, __LINE__ + 1
    end

    def remove_alias_attribute(new_name)
      self.attribute_aliases = attribute_aliases.except(new_name.to_s)

      attribute_method_matchers.each do |matcher|
        matcher_new = matcher.method_name(new_name).to_s
        remove_proxy_call self, matcher_new
      end
    end
  end
end