Class: IsEmailAddressValidator

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

Overview

usage:

in your model, add:

validates :email, :presence => true, :is_email_address => true;

taken from lindsaar.net/2010/1/31/validates_rails_3_awesome_is_true (It’s probably a fake regex but hey, it looks legit.)

Constant Summary collapse

EmailAddress = 
begin
  qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]'
  dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]'
  atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-' +
    '\\x3c\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+'
  quoted_pair = '\\x5c[\\x00-\\x7f]'
  domain_literal = "\\x5b(?:#{dtext}|#{quoted_pair})*\\x5d"
  quoted_string = "\\x22(?:#{qtext}|#{quoted_pair})*\\x22"
  domain_ref = atom
  sub_domain = "(?:#{domain_ref}|#{domain_literal})"
  word = "(?:#{atom}|#{quoted_string})"
  domain = "#{sub_domain}(?:\\x2e#{sub_domain})*"
  local_part = "#{word}(?:\\x2e#{word})*"
  addr_spec = "#{local_part}\\x40#{domain}"
  pattern = /\A#{addr_spec}\z/
end

Instance Method Summary collapse

Instance Method Details

#error_message ⇒ Object 



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# File 'lib/app/validators/is_email_address_validator.rb', line 25

def error_message
  "is not a valid email address."
end

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/app/validators/is_email_address_validator.rb', line 29

def validate_each(record, attribute, value)
  unless value =~ EmailAddress
    record.errors[attribute] << (options[:message] || error_message )
  end
end