Method: ActiveModel::Validations::ClassMethods#validates_with

Defined in:
lib/active_model/validations/with.rb

#validates_with(*args, &block) ⇒ Object

If you pass any additional configuration options, they will be passed to the class and available as options:

class Person
  include ActiveModel::Validations
  validates_with MyValidator, :my_custom_key => "my custom value"
end

class MyValidator < ActiveModel::Validator
  def validate(record)
    options[:my_custom_key] # => "my custom value"
  end
end



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# File 'lib/active_model/validations/with.rb', line 79

def validates_with(*args, &block)
  options = args.extract_options!
  args.each do |klass|
    validator = klass.new(options, &block)
    validator.setup(self) if validator.respond_to?(:setup)

    if validator.respond_to?(:attributes) && !validator.attributes.empty?
      validator.attributes.each do |attribute|
        _validators[attribute.to_sym] << validator
      end
    else
      _validators[nil] << validator
    end

    validate(validator, options)
  end
end