# File lib/active_support/vendor/i18n-0.3.7/i18n/backend/active_record.rb, line 35
        def lookup(locale, key, scope = [], options = {})
          return unless key

          separator = options[:separator] || I18n.default_separator

          key = resolve_link(locale, key)
          key = (Array(scope) + Array(key)).join(separator)
          result = Translation.locale(locale).lookup(key, separator).all

          if result.empty?
            return nil
          elsif result.first.key == key
            return result.first.value
          else
            chop_range = (key.size + separator.size)..-1
            result = result.inject({}) do |hash, r|
              hash[r.key.slice(chop_range)] = r.value
              hash
            end
            deep_symbolize_keys(unwind_keys(result, separator))
          end
        end