How to call a method from a controller without a redirect?

Question

Ruby on Rails

There is a code:

= link_to "Start test", "start_new_test", class: "btn btn-primary"

How to rewrite it so that the "start_new_test" method from the controller is simply called and does not redirect anywhere?

Answer 1

As Dima wrote , it's enough just to add remote: true
it. But in the controller, in turn, you need to render the thread, or by default the controller will look for controller_name.html.erb.
In the controller you need to add
If pressing a button still requires some kind of visual reaction, then check out this page rusrails.ru/working-with-javascript-in-rails

Answer 2

I understand that you need to make an ajax request.
To do this, put the jquery-ujs gem, and make the helper call like this:

= link_to "Start test", "start_new_test", class: "btn btn-primary", remote: true