Subscriber.Add in Ubercart Checkout Form

I'm using Ubercart on a Drupal site and I'd like users to be able to subscribe to our Campaign Monitor email list through the Ubercart checkout form.

I've built a custom module that is successfully adding the Newsletter Subscribe checkbox to the form. I'm using variables from the Ubercart form & calling Subscriber.Add through a SOAP Request as documented in the API. Everything appears to be working fine, but users aren't being added to my particular subscriber list.

I've checked the $data, $headers, & $url for the drupal_http_request and everything is populating as expected. My Campaign Monitor apikey & listid are correct as well... I've double checked many times. In the code below I've inserted x's because I wasn't sure if it was sensitive information or not. :)

Please take a look at this code & if anyone could point me in the right direction, that would be great!

function uc_foo_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'uc_cart_checkout_form') {
  // Add a checkbox which lets users subscribe to the newsletter & add submit handler to handle back-end Campaign Monitor adding code.
    $form['panes']['customer']['subscribe_to_newsletter'] = array(
      '#type' => 'checkbox',
      '#title' => t('Subscribe to our newsletter to receive news, updates, and sales announcements.'),
      '#description' => t('Every newsletter contains a link which allows you to easily unsubscribe.'),
      '#default_value' => 0,
    $form['#submit'][] = 'uc_foo_cm_add';

function uc_foo_cm_add($form, &$form_state){
        //If checkbox is selected, add an IF statement to add them to campaign & return a confirmation message.
            $cm['apikey'] = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
            $cm['listid'] = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; // Campaign Monitor List ID
              $cm['email'] = $form_state['values']['panes']['customer']['primary_email'];
              $cm['name'] = $form_state['values']['panes']['billing']['billing_first_name'].' '.$form_state['values']['panes']['billing']['billing_last_name'];
              $cm['sitename'] = 'xxxxxx';  
            $url = "http://{$cm['sitename']}";
              $headers = array(
                'Content-Type' => 'text/xml; charset=utf-8',
                'SOAPAction'   => '""',

              $data = '<?xml version="1.0" encoding="utf-8"?>'
                    . '<soap:Envelope xmlns:xsi=""'
                    . 'xmlns:xsd=""'
                    . 'xmlns:soap="">'
                    . '<soap:Body>'
                    . '<Subscriber.Add xmlns="">'
                    . '<ApiKey>'.$cm['apikey'].'</ApiKey>'
                    . '<ListID>'.$cm['listid'].'</ListID>'
                    . '<Email>'.$cm['email'].'</Email>'
                    . '<Name>'.$cm['name'].'</Name>'
                    . '</Subscriber.Add>'
                    . '</soap:Body>'
                    . '</soap:Envelope>';
            drupal_http_request($url, $headers, 'POST', $data);
            drupal_set_message('You have been added to our newsletter subscriber list!');
kcornelius, 7 years ago

I found a solution to my own problem. Instead of calling the sitename into the $url, I needed to simply call! (No sitename needed.) Silly, but I'm so happy it's solved.

Mathew Mathew, 7 years ago

Good spotting! Glad you got it all working now.

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jonty17, 6 years ago


I don't suppose you had considered releasing the code as a module had you?? This would be very useful to a lot of people! I've had a look through the code and tried to roll it up into a module, but I'm a bit dumb at this and not having a lot of success. Even if what you have only partially works it would be a good starting point for anybody wanting this functionality.

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