Ruby on Rails: Jquery/ajax dynamic form fields

Question

I'm in the process of implementing dynamic form fields. So far, I have some jQuery that does the trick, however I have to manually refresh the page to see the change.

How can I make this dynamic? I'm under the impression I'll need to include ajax somewhere, but I'm having issues finding good resources.

Here is the code I'm using;

jQuery ->
    $(
        if ($('#subject_enrolled').val() == '0')
            $('#subject_reason_not_enrolled').show()
        else
            $('#subject_reason_not_enrolled').hide();
    );

Any help/resources would be greatly appreciated.

Answer 1

I'm assuming #subject_enrolled is a checkbox. You just need to listen for the change events on that checkbox and then update the display of your #subject_reason_not_enrolled. This is covered quite a bit in other posts. Here's one: How to listen to when a checkbox is checked in Jquery