class ActionController::UrlGenerationError::Correction

def corrections
  if @error.method_name
    maybe_these = @error.routes.named_routes.helper_names.grep(/#{@error.route_name}/)
    maybe_these -= [@error.method_name.to_s] # remove exact match
    maybe_these.sort_by { |n|
      DidYouMean::Jaro.distance(@error.route_name, n)
    }.reverse.first(4)
  else
    []
  end
end

def initialize(error)
  @error = error
end