Class: EqualityValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/active_validation/validators/equality_validator.rb

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object



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# File 'lib/active_validation/validators/equality_validator.rb', line 3

def validate_each(record, attribute, value)
  to = options.fetch(:to, nil)
  if to.nil?
    raise ArgumentError,
      "ArgumentError: missing ':to' attribute for comparison."
  end

  operator  = options.fetch(:operator, nil)
  operators = OPERATORS.keys
  unless operators.include?(operator)
    raise ArgumentError,
      "Unknown operator: #{operator.inspect}. Valid operators are: #{operators.map(&:inspect).join(', ')}"
  end
  operator  = OPERATORS.fetch(operator)

  unless value.send(operator.to_sym, record.send(to.to_sym))
    record.errors[attribute] << (options[:message] || I18n.t('active_validation.errors.messages.equality', attr: to, operator: operator))
  end
end