Method Func

x/errors/validation/error.go:64–70

Func accepts a variadic number of functions which accept the value of the field and return a string message if the value is invalid. It joins the reasons into one.

(fns ...func(value T) string)

// and return a string message if the value is invalid.
// It joins the reasons into one.
func (e *FieldError[T]) Func(fns ...func(value T) string) *FieldError[T] {
	for _, fn := range fns {
		e.joinReason(fn(e.Value))
	}

	return e
}

// Join joins the given validation errors into one.
func Join(errs ...errors.ValidationError) error { // note that here we return the standard error type instead of the errors.ValidationError in order to make the error nil instead of ValidationErrors(nil) on empty slice.