# frozen_string_literal: true module FavoriteColor extend ActiveSupport::Concern included do validates :operating_thetan, numericality: true, allow_nil: true validate :ensure_correct_favorite_color end def ensure_correct_favorite_color return unless favorite_color && (favorite_color != '') return if ApplicationHelper::COLOR_NAMES.any? { |s| s.casecmp(favorite_color).zero? } matches = ApplicationHelper::COLOR_SEARCH.search(favorite_color) closest_match = matches.last[:string] second_closest_match = matches[-2][:string] errors.add(:favorite_color, "We've never heard of the color \"#{favorite_color}\". Did you mean \"#{closest_match}\"? Or perhaps \"#{second_closest_match}\"?") end end