class AttrValidator::Validators::LengthValidator

Public Class Methods

validate(object, options) click to toggle source

Validates that given object has correct length @param object [#length] object to validate @param options [Hash] validation options, e.g. { min: 2, max: 4, equal_to: 3, not_equal_to: 6 } @return [Array] empty array if object is valid, array of error messages otherwise

# File lib/attr_validator/validators/length_validator.rb, line 7
def self.validate(object, options)
  return [] if object.nil?

  errors = []
  if options[:min]
    errors << AttrValidator::I18n.t('errors.can_not_be_less_than', length: options[:min]) if object.length < options[:min]
  end
  if options[:max]
    errors << AttrValidator::I18n.t('errors.can_not_be_more_than', length: options[:max]) if object.length > options[:max]
  end
  if options[:equal_to]
    errors << AttrValidator::I18n.t('errors.should_be_equal_to', length: options[:equal_to]) if object.length != options[:equal_to]
  end
  if options[:not_equal_to]
    errors << AttrValidator::I18n.t('errors.should_not_be_equal_to', length: options[:not_equal_to]) if object.length == options[:not_equal_to]
  end

  errors
end
validate_options(options) click to toggle source
# File lib/attr_validator/validators/length_validator.rb, line 27
def self.validate_options(options)
  AttrValidator::ArgsValidator.is_hash!(options, :validation_rule)
  AttrValidator::ArgsValidator.has_only_allowed_keys!(options, [:min, :max, :equal_to, :not_equal_to], :validation_rule)
end