Change order of custom profile fields on Drupal register page

Question

I have created a custom profile in CiviCRM (Administer > Custom Data and Screens > Profiles) designated to be displayed on the Drupal registration page (see second screenshot), for users creating a new account. Initially, the CiviCRM profile was listed after the Drupal core elements: username, password, etc. But now the custom CiviCRM profile is displayed first.

How can I rearrange the order? I looked in Drupal blocks and do not see anything regarding these and I've tried assigning an order of "50" to no avail.

CiviCRM 4.7.27, Drupal 7

In the screenshot below, you can see that the "Tell us more" and darker text section is the CiviCRM custom profile and what follows it are the Drupal core elements that I want to be at the top.

Answer 1

You need to use a hook_form_alter function in Drupal to accomplish this. In doing so, you can modify the weight of the items to appear below the existing form items.

function yourmod_form_alter(&$form, &$form_state, $formID) {
  if (($formID == 'user_register_form')) {
    $form['civicrm-profile-register']['#weight'] = somevalue;
  }
}