Rails - How to put a confirmation popup on a f.submit?

Question

I want to have a confirmation popup on a <% f.submit %> call on a new object form. Is there a way to do this without javascript?

Answer 1

You want <%= f.submit :confirm => 'Your confirm message' %>. Just FYI, this is just the short hand for the javascript call.

Edit: As stated in other answers, the new way to have a popup confirm is:

<%= f.submit 'Save', data: { confirm: 'Your confirm message' } %>

Answer 2

The correct way is to use:

= f.submit "Save", data: { confirm: "Are you sure you want to submit this form?" }