module Mongoid::Indexable::Validators::Options

def validate(klass, spec, options)
  validate_spec(klass, spec, options)
  validate_options(klass, spec, options)
end

def validate_options(klass, spec, options)
  options.each_pair do |name, value|
    unless VALID_OPTIONS.include?(name)
      raise Errors::InvalidIndex.new(klass, spec, options)
    end
  end
end

def validate_spec(klass, spec, options)
  raise Errors::InvalidIndex.new(klass, spec, options) if !spec.is_a?(::Hash)
  spec.each_pair do |name, value|
    next if name == :options
    unless VALID_TYPES.include?(value)
      raise Errors::InvalidIndex.new(klass, spec, options)
    end
  end
end