validate_each

# File activerecord/lib/active_record/validations/associated.rb, line 6
      def validate_each(record, attribute, value)
        context = record_validation_context_for_association(record)

        if Array(value).reject { |association| valid_object?(association, context) }.any?
          record.errors.add(attribute, :invalid, **options.merge(value: value))
        end
      end