Contents

class AlphaNumericValidator < ActiveModel::EachValidator

  def validate_each(record, attribute, value)
    unless valid?(value.to_s, options)
      record.errors[attribute] << options.fetch(:message, I18n.t("active_validation.errors.messages.alpha_numeric"))
    end
  end

  private

  def valid_format?(value, options)
    strict = options.fetch(:strict, false)

    value =~ case options.fetch(:case, :any)
    when :lower
      strict ? /^[a-z0-9]+$/ : /^[a-z0-9 ]+$/
    when :upper
      strict ? /^[A-Z0-9]+$/ : /^[A-Z0-9 ]+$/
    else
      strict ? /^[A-Za-z0-9]+$/i : /^[A-Za-z0-9 ]+$/i
    end
  end

  def valid_length?(value)
    value.present?
  end

  def valid?(value, options)
    valid_length?(value) && valid_format?(value, options)
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
active_validation-3.0.0	lib/active_validation/validators/alpha_numeric_validator.rb