Recently I have stumbled upon a situation in Joomla 3.1.1 where I need to add a custom field attached with default registration form.
I surfed the existing resources which say that I should navigate to joomla_root/components/com_users/models/forms/registration.xml and then change the file accordingly.
I have done that but nothing is showing up. I also need to change registration.php in model and controller too. So, I need your inputs on how to do that. I can't use profile plugin or commercial extensions.
One more thing that I've noticed is the fact that changing registration.xml file and such things work perfectly fine in Joomla 2.5 but isn't working in 3.x.