en:
  errors:
    messages:
      restrict_to: "is not one of the allowed options (%{allowed_options})"

      less_or_greater_than:      "must be %{operator_text} %{other_value}"
      less_or_greater_than_attr: "must be %{operator_text} %{attr_name} (%{other_value})"

      sum_of:              "must be the sum of %{attr_names} (%{sum}) but was %{value}"
      sum_of_with_addends: "must be the sum of %{attr_names} (%{addends} = %{sum}) but was %{value}"

      must_be_blank: "must be blank"

      at_least_one_field_must_be_present: "at least 1 of these fields must be present: %{attr_names_list}"

      year_invalid:                 "is not a valid year (must be a number between %{min} and %{max})"
      date_invalid:                 "is not a valid date (must be in %{expected_format} format)"