Feature request: Support rendering of partial thymeleaf fragments

[v79]

In Spring/Thymeleaf, it is possible for a controller to ask Thymeleaf to render part of a page declared as a th:fragment, e.g.:

@RequestMapping(value = "/guests", method = RequestMethod.GET)
public String showGuestList(Model model) {
    model.addAttribute("guests", hotelService.getGuestsList());
    
    return "results :: resultsList";
}

Where resultsList is defined inside a bigger Thymeleaf template as <div th:fragment="resultsList" th:unless="${#lists.isEmpty(guests)}" class="results-block">...</div>.

(As described here and elsewhere).

What would it take add the same functionality in spark? I'm willing to try it myself but don't know where to start.

When writing AJAX-heavy web pages I'm having to move all my th:fragments into separate HTML files, which breaks one of the benefits of using Thymeleaf and is a lot of effort.

[tipsy]

What would it take add the same functionality in spark? I'm willing to try it myself but don't know where to start.

If this is a thymeleaf-feature you just need to find a way of calling it. You could add an overload, like ThymeleafEngine.render(model, template, fragment)? If it's a Spring feature, you'll have to copy or re-implement the functionality.

[v79]

Amazing timing @tipsy - I had a flash of inspiration this morning and got it working with the overload mechanism you suggested. Just 5 minutes before your comment!

[tipsy]

Great! If you make a PR I'll merge it.