Conditional attribute using thymeleaf

Question

I know how to make a conditional attribute inside a tag on jstl: ``` onload="somejavascriptfunction()" > ``` But how do I do it using thymeleaf? IndexController ``` @RequestMapping("/register") public String register(UserEntity user, @RequestParam String repeatedPassword, RedirectAttributes redirectAttributes) { user.setAdmin(false); userFacade.create(user); redirectAttributes.addFlashAttribute(Constants.USER_CREATED, true); logger.info("Usuario criado"); return "redirect:/login"; } ``` So far the only solution I found was to do it like this ``` ``` But that doesn't seem to be the best way to do it. So how do I make an if statement for an attribute on thymeleaf?

Accepted Answer

It's really kind of counter-intuitive, considering to append a conditional class you use the following format: ```

``` In order to append a conditional attribute, you put the condition on the attribute's value, like so: ```

``` If userSlug is null, the previous statement will evaluate to: ```

``` If userSlug is not null, the statement evaluates to: ```

```

Conditional attribute using thymeleaf

Solution

Problem