validate_each

# File activemodel/lib/active_model/validations/exclusion.rb, line 17
      def validate_each(record, attribute, value)
        delimiter = options[:in]
        exclusions = delimiter.respond_to?(:call) ? delimiter.call(record) : delimiter
        if exclusions.send(inclusion_method(exclusions), value)
          record.errors.add(attribute, :exclusion, options.except(:in).merge!(:value => value))
        end
      end