Class: MoneyRails::ActiveModel::MoneyValidator

Inherits:
ActiveModel::Validations::NumericalityValidator
  • Object
show all
Defined in:
lib/money-rails/active_model/validator.rb

Defined Under Namespace

Classes: Details

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attr, _value) ⇒ Object 



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# File 'lib/money-rails/active_model/validator.rb', line 14

def validate_each(record, attr, _value)
  subunit_attr = record.class.monetized_attributes[attr.to_s]
  currency = record.public_send("currency_for_#{attr}")

  # WARNING: Currently this is only defined in ActiveRecord extension!
  before_type_cast = :"#{attr}_money_before_type_cast"
  raw_value = record.try(before_type_cast)

  # If raw value is nil and changed subunit is nil, then
  # nil is a assigned value, else we should treat the
  # subunit value as the one assigned.
  if raw_value.nil? && record.public_send(subunit_attr)
    subunit_value = record.public_send(subunit_attr)
    raw_value = subunit_value.to_f / currency.subunit_to_unit
  end

  return if options[:allow_nil] && raw_value.nil?

  # Set this before we modify raw_value below.
  stringy = raw_value.present? && !raw_value.is_a?(Numeric) && !raw_value.is_a?(Money)

  if stringy
    # TODO: This is supporting legacy behaviour where a symbol can come from a i18n locale,
    #       however practical implications of that are most likely non-existent
    symbol = lookup(:symbol, currency) || currency.symbol

    # remove currency symbol
    raw_value = raw_value.to_s.gsub(symbol, "")
  end

  # Cache abs_raw_value before normalizing because it's used in
  # many places and relies on the original raw_value.
  details = generate_details(raw_value, currency)
  normalized_raw_value = normalize(details)

  super(record, attr, normalized_raw_value)

  return unless stringy
  return if record_already_has_error?(record, attr, normalized_raw_value)

  add_error!(record, attr, details) if
    value_has_too_many_decimal_points(details) ||
    thousand_separator_after_decimal_mark(details) ||
    invalid_thousands_separation(details)
end