Class: EmailFormatValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/pukka/email_format_validator.rb

Overview

Email addresses are notoriously difficult to validate. The only real way is to try to send an email to the address and receive confirmation that it arrived. Clearly this is impractical most of the time.

The regexp below is James Watts and Francisco Martin Moreno’s one from fightingforalostcause.net/misc/2006/compare-email-regex.php

There are better ones on that page but they displease Ruby.

It’s worth reading the discussion there.

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/pukka/email_format_validator.rb', line 13

def validate_each(record, attribute, value)
  record.errors[attribute] << (options[:message] || 'is not an email address') unless
    value =~ /^([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*[\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+@((((([a-z0-9]{1}[a-z0-9\-]{0,62}[a-z0-9]{1})|[a-z])\.)+[a-z]{2,6})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)$/i
end