Support Ajax Webforms

Hi, thank you for helping me out. For integration with Redis I used https://www.drupal.org/node/2160133 . The connection with Redis is working and recognized by authcache. For integration of authcache form, I followed the readme of the cacheobject module. I disabled everything Varnish related and the problem persists.

I really can't get basic setup working. Drupal cache always misses. As far as I can tell the problem is with authcache for which page cache has to be disabled. The only reason I need authcache is for forms, to clear the unnecessary tokens that cause page caching to be disabled for sure.

What I think is happening, is that the check for page caching caused by form tokens happens before authcache clears them.

The culprit is the webform_ajax module. I think it alters the form after authcache removes the token, causing the token to be renewed.

Changing the order of the modules doesn't help or I'm doing it wrong.

FYI:

<?php
function webform_ajax_form_webform_client_form_alter(&$form, $form_state, $form_id) {
  $webform = $form['#node']->webform;
  if ($webform['webform_ajax'] != WEBFORM_AJAX_NO_AJAX) {

    // The wrapper ID will have to follow the webform all the time, to be unique,
    // and allow AJAX commands to perform correctly.
    // We have many ways to get it back depending on the situation.
    $form['webform_ajax_wrapper_id'] = array(
      '#type' => 'hidden',
    );
    if (isset($form_state['values']['webform_ajax_wrapper_id'])) {
      $form['webform_ajax_wrapper_id']['#value'] = $form_state['values']['webform_ajax_wrapper_id'];
    }
    elseif (isset($form['#node']->webform['webform_ajax_wrapper_id'])) {
      $form['webform_ajax_wrapper_id']['#value'] = $form['#node']->webform['webform_ajax_wrapper_id'];
    }
    else {
      // At last, generate a unique ID.
      $form['webform_ajax_wrapper_id']['#value'] = drupal_html_id('webform-ajax-wrapper-' . $form['#node']->nid);
    }

    $form['#prefix'] = '<div id="' . $form['webform_ajax_wrapper_id']['#value'] . '">' . (isset($form['#prefix']) ? $form['#prefix'] : '');
    $form['#suffix'] = (isset($form['#suffix']) ? $form['#suffix'] : '') . '</div>';

    foreach (array('previous', 'next', 'submit', 'draft') as $button) {
      if (isset($form['actions'][$button])) {
        // vectorbross comment: the command below causes the form build id to be (re?)added
        $form['actions'][$button]['#ajax'] = array(
          'callback' => 'webform_ajax_callback',
          'wrapper' => $form['webform_ajax_wrapper_id']['#value'],
          'progress' => array(
            'message' => '',
            'type' => 'throbber',
          ),
        );
        if (in_array($button, array('next', 'submit'))) {
          $form['actions'][$button]['#ajax']['event'] = 'click';
        }
        // Workaround for Drupal core bug http://drupal.org/node/1548976.
        // As long as buttons HTML id are causing problems, and it has bad
        // consequences on pages where Webform AJAX is active, we'll force
        // custom ids on AJAXed Webform's buttons.
        $submit_id = drupal_html_id('edit-webform-ajax-' . $button . '-' .$form['#node']->nid);
        $form['actions'][$button]['#attributes']['id'] = $submit_id;
        $form['actions'][$button]['#id'] = $submit_id;
      }
    }
  }
}
?>

Hi, that doesn't help. I tried authcache_element_set_cacheable on webform_ajax_wrapper_id, but the form is not cached. Could I do something more generic to force the cache?

I get this message from authcache_ensure_element_cacheable:
Value element contained in the cacheable form webform_client_form_8. Please enable a suitable Authcache integration module for that form or file a support request.
When I print the element I get:

(
    [#type] => value
    [#value] => 8
    [#post_render] => Array
        (
            [0] => authcache_ensure_element_cacheable
        )

    [#authcache_cancel_message] =&gt; Value element contained in the cacheable form <em class="placeholder">webform_client_form_8</em>. Please enable a suitable Authcache integration module for that form or file a support request.
    [#authcache_cancel_strict] =&gt; 1
    [#input] =&gt; 1
    [#process] =&gt; Array
        (
            [0] =&gt; _bootstrap_process_element
            [1] =&gt; _bootstrap_process_input
        )

    [#defaults_loaded] =&gt; 1
    [#tree] =&gt; 1
    [#parents] =&gt; Array
        (
            [0] =&gt; details
            [1] =&gt; nid
        )

    [#array_parents] =&gt; Array
        (
            [0] =&gt; details
            [1] =&gt; nid
        )

    [#weight] =&gt; 0
    [#processed] =&gt; 1
    [#required] =&gt; 
    [#attributes] =&gt; Array
        (
        )

    [#title_display] =&gt; before
    [#id] =&gt; edit-details-nid
    [#name] =&gt; details[nid]
    [#sorted] =&gt; 1
    [#children] =&gt; 
)

I found two more elements that needed to be made cacheable, but the problem still persists.

I found the last issue. The form needs to be passed by reference:

<?php
function MYMODULE_form_webform_client_form_alter(&$form, &$form_state) {
  authcache_element_set_cacheable($form['webform_ajax_wrapper_id']);
}
?>

No, this is:

<?php
function MYMODULE_form_webform_client_form_alter(&$form, &$form_state) {
	authcache_element_set_cacheable($form['webform_ajax_wrapper_id']);
	authcache_element_set_cacheable($form['details']['nid']);
	authcache_element_set_cacheable($form['details']['uid']);
	authcache_element_set_cacheable($form['submitted']['pagina']);
}
?>