Class: DomainValidator

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

Overview

Validate if a string is a valid domain. This should work with [IDN](idn).

validates :domain_column, domain: true

Set a minimum/maximum number of domain parts (aka. labels)

validates :domain_column, domain: { min_domain_parts: 2 }
validates :domain_column, domain: { max_domain_parts: 2 }

Constant Summary collapse

REGEXP =

A,63z

/
  \A[\p{L}\d-]{1,63}\z
/ix.freeze

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/validators/domain_validator.rb', line 15

def validate_each record, attribute, value
  parts = value.split '.'

  parts.each do |part|
    record.errors.add attribute, (options[:message] || I18n.t('rails_validations.domain.invalid')) unless part =~ REGEXP
  end

  if options[:max_domain_parts].present? && parts.length > options[:max_domain_parts]
    record.errors.add attribute, (options[:message] || I18n.t('rails_validations.domain.max_domain_parts', max: options[:max_domain_parts]))
  end

  if options[:min_domain_parts].present? && options[:min_domain_parts] > parts.length
    record.errors.add attribute, (options[:message] || I18n.t('rails_validations.domain.min_domain_parts', min: options[:min_domain_parts]))
  end
end