Method: ActiveModel::Validations::ArrayValidator#initialize

Defined in:
lib/can_has_validations/validators/array_validator.rb

#initialize(options) ⇒ ArrayValidator

Returns a new instance of ArrayValidator.

Raises:

  • (ArgumentError) 


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# File 'lib/can_has_validations/validators/array_validator.rb', line 40

def initialize(options)
  record_class = options[:class]
  super
  record_class.extend DefaultKeys

  defaults = @options.dup
  validations = defaults.slice!(*record_class.send(:_validates_default_keys), :attributes)

  raise ArgumentError, "You need to supply at least one validation for :#{kind}" if validations.empty?

  defaults[:attributes] = attributes

  @validators = validations.map do |key, sub_options|
    next unless sub_options

    if (cond_keys = _parse_validates_options(sub_options).keys & i(if on unless)).any?
      raise ArgumentError, ":#{kind} does not support conditionals on sub-validators - found on #{key}: #{cond_keys.map(&:inspect).join(', ')}"
    end

    key = "#{key.to_s.camelize}Validator"

    begin
      klass = key.include?("::".freeze) ? key.constantize : record_class.const_get(key)
    rescue NameError
      raise ArgumentError, "Unknown validator: '#{key}'"
    end

    klass.new(defaults.merge(_parse_validates_options(sub_options)).except(:if, :on, :unless))
  end
end