Thymeleaf: use the same template with dynamic url from different controllers

Question

I have two html templates which do same function, but handled by two different controllers:

1st html handled by moderator controller

<form th:action="@{/moderator/new-user-form}" th:object="${caltest}" method="post"
     enctype="multipart/form-data" class="form-validate form row">
    <!-- some code -->
</form>

2nd html handled by admin controller

<form th:action="@{/admin/new-user-form}" th:object="${caltest}" method="post"
     enctype="multipart/form-data" class="form-validate form row">
    <!-- some code -->
</form>

As you can see these templates differ only by action url:

th:action="@{/someurl}"

Is it possible to use the same template with dynamic url from different controllers?

I am asking this question to avoid repeating the same code many times — valijon
– valijon, Commented May 9, 2017 at 10:16
from where do you get the identifier to call the right controller? In your case admin or moderator? Or at least the full url? — Patrick
– Patrick, Commented May 9, 2017 at 14:38
Have you tried that? Did you get any errors? The Same template can be returned from different controllers as long as they are mapped to different URL paths — SAP
– SAP, Commented May 9, 2017 at 23:21
@SAP yes I am using that now without any errors. My urls differ, since each controller is mapped accordingly(For instance: /admin/save-user-form, /moderator/save-user-form) — valijon
– valijon, Commented May 10, 2017 at 10:40
@Patrick this is how exactly I am getting url in my project: @Controller @RequestMapping(value = "/admin") @PropertySource("classpath:application.properties") public class AdminController { //some other code @RequestMapping("/submit-murojaat") public String newMurojat(Model model) { model.addAttribute("caltest", new Caltest()); model.addAttribute("action", "/save-new-murojaat"); return "murojaatNewS"; } } — valijon
– valijon, Commented May 10, 2017 at 10:44

Metroids · Accepted Answer · 2017-05-10 01:24:57Z

3

There are many different ways to do this... the simplest, is to use the same template in the controllers, and in each controller pass a variable that contains the correct action.

For example:

// Moderator controller
@RequestMapping(value = "/moderator")
public String moderator(Map<String, Object> model) {
  model.put("action", "/moderator/new-user-form");
  return "new-user-form";
}

// Admin controller
@RequestMapping(value = "/moderator")
public String moderator(Map<String, Object> model) {
  model.put("action", "/admin/new-user-form");
  return "new-user-form";
}

And in the html

<form th:action="@{${action}}">

If that isn't suitable, you could turn the form itself into a fragment, and then pass the action as a parameter. Something like this:

<!-- Fragment -->
<form th:fragment="userform (action)" th:action="@{${action}}">
  .
  .
  .
</form>

<!-- Including the fragment -->
<div th:replace="fragments/userform :: userform(action='/admin/new-user-form')" />
<!-- or -->
<div th:replace="fragments/userform :: userform(action='/moderator/new-user-form')" />

answered May 10, 2017 at 1:24

Metroids

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1 Comment

valijon Over a year ago

This worked perfectly! <form th:action="@{${action}}"> Thank you so much!

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