module ActiveSupport::Deprecation::DeprecatedConstantAccessor

def const_missing(missing_const_name)
  if class_variable_defined?(:@@_deprecated_constants)
    if (replacement = class_variable_get(:@@_deprecated_constants)[missing_const_name.to_s])
      replacement[:deprecator].warn(replacement[:message] || "#{name}::#{missing_const_name} is deprecated! Use #{replacement[:new]} instead.", caller_locations)
      return ActiveSupport::Inflector.constantize(replacement[:new].to_s)
    end
  end
  super
end