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Versions: 14
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Contents
# frozen_string_literal: true
module ActiveModel
module Validations
class HostnameValidator < EachValidator
# Rules taken from http://www.zytrax.com/books/dns/apa/names.html
def validate_each(record, attribute, value)
return if value.blank? && options[:allow_blank]
return if value.nil? && options[:allow_nil]
return if Validators::Hostname.valid?(value.to_s)
record.errors.add(
attribute,
:invalid_hostname,
message: options[:message],
value: value
)
end
end
module ClassMethods
# Validates whether or not the specified URL is valid.
#
# class User < ActiveRecord::Base
# validates_hostname_format_of :site
#
# # Validates against a list of valid TLD.
# validates_hostname_format_of :site, tld: true
# end
#
def validates_hostname_format_of(*attr_names)
validates_with HostnameValidator, _merge_attributes(attr_names)
end
alias_method :validates_hostname, :validates_hostname_format_of
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems