rails form validation empty filed

Question

Is there an easy way to add a form validation in a Rails app that asks: "Are you sure you want to submit this form with an empty subject?"

(I googled "are you sure" blank rails, validation empty etc. and did not find a useful answer)

http://stackoverflow.com/questions/808547/fully-custom-validation-error-message-with-rails — sjain, Apr 02 '13 at 13:53

score 1 · Accepted Answer · answered Apr 02 '13 at 14:10

If you want a validation before the user submit, you can try something like this :

<%= f.submit :onclick => "show_custom_confirm()" %>

<% javascript_tag do %>
  function show_custom_confirm() {
    if ('#my_field').val() == '')
      return #{confirm_javascript_function("You'll submit with an empty field. Are you sure?")};
  }
<% end %>

rails form validation empty filed

1 Answers1