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I need to save a draft of the webform after each field change. I know that you can save a draft by clicking a button (or between pages in multi-page forms) and my initial tough was to do a form_alter, add an ajax callback to fields and call the submit handler for save_draft. Had anyone tried something like this?

Some conditions:

  • If there is an existing draft for the current user, it needs to update that one (not create a new one);
  • it needs to work for anonymous users as well.

Drupal 7 + Webform 7.x-3.x

I'll post the answer here if I manage to do it, but any feedback would be appreciated if there are people who've done this before.

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Ok, I've found this http://drupal.org/node/1319926 and based on it I've managed to make it work. This is my ajax callback (it can be attached using hook_form_alter(), based on your needs):

function _my_module_js_draft($form, &$form_state) {
  global $user;
  $draft_sid = _webform_fetch_draft_sid($form['#node']->nid, $user->uid);

  $form_state['values']['details']['sid'] = $draft_sid;
  $form_state['values']['op'] = !empty($form['actions']['draft']['#value']) ? $form['actions']['draft']['#value'] : t('Save Draft');

  $form_state['save_draft'] = TRUE;
  webform_client_form_pages($form, $form_state);
  webform_client_form_submit($form, $form_state);

  return $form;
}

For having the save draft functionality available for Anonymous I've used this patch: http://drupal.org/node/1932560#comment-7185674

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  • Could you provide some more detail about how you attached it using hook_form_alter?
    – user11312
    Jun 11, 2014 at 18:54
  • to your form item array add something like (sorry, I can't make this format the code correctly): '#ajax' => array( //save draft callback 'callback' => '_my_module_js_draft', 'event' => 'click', 'validate_first' => FALSE, //run the request even if validations fails 'progress' => array( 'type' => 'none', 'message' => '', ), ),
    – Stefan
    Jun 12, 2014 at 11:15

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