class ActiveModel::Validations::PasswordValidator
Public Instance Methods
validate(record)
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Using multiple validators for passwords sucks because either the user receives a flood of (often redundant) errors, or each validation must become conditional, which can get complex fairly quickly.
This class attempts to perform validations in a specific order of importance and only displays the errors that are relevant.
todo: add tests todo: add more options todo: check for password strength todo: use I18n for errors
# File lib/password_validator.rb, line 17 def validate(record) @password = record.try(:password) @password_confirmation = record.try(:password_confirmation) case when blank? record.errors.add(:password, "can't be blank") unless record.persisted? when too_short? record.errors.add(:password, "must be a minimum of #{options[:min_length]} characters in length") when too_common? record.errors.add(:password, "is too common") when not_confirmed? record.errors.add(:password_confirmation, "doesn't match password") end end
Private Instance Methods
blank?()
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# File lib/password_validator.rb, line 35 def blank? @password.blank? end
not_confirmed?()
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# File lib/password_validator.rb, line 49 def not_confirmed? options[:confirmation] && @password_confirmation != @password end
too_common?()
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# File lib/password_validator.rb, line 43 def too_common? # todo: improve this common_passwords = %w(password qwerty abc123 abcdef 123456 111111) options[:common] && common_passwords.include?(@password) end
too_short?()
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# File lib/password_validator.rb, line 39 def too_short? options[:min_length] && @password.length < options[:min_length] end