Fatal error: Call to a member function validate() on a non-object in /var/www/vhosts/XXX.com/httpdocs/sites/all/modules/views/includes/admin.inc on line 895

When adding a feed display, you see "Missing style plugin", but you can fix it. However, when you click "Save" above error occurs. Site breaks.

Version 6.x-2.6
Drupal 6.13

Comments

Anonymous’s picture

Anonymous (not verified) commented

The included frontpage2 view has a pre-made Feed display. It works. But when you edit it and save that view, again the above error also occurs. All caches were cleared before testing this.

Anonymous’s picture

Anonymous (not verified) commented
Status: Active » Needs review

The problem seems to be APC cache on my web server! This APC, I think, caches the Views form, but loses some data in the process. Not good, deactivating APC for now. Does someone have the same experience?

merlinofchaos’s picture

merlinofchaos commented
Status: Needs review » Active

needs review means there is a patch.

Anonymous’s picture

Anonymous (not verified) commented
Status: Active » Closed (fixed)

Problem solved, this was the reason (my own fault):

I was experiencing problems with APC cache and some imagefield forms, so I built a custom module with:

/*
 * Cache forms, due to APC cache on server
 */
function mt_custom_form_alter(&$form, $form_state, $form_id) {
	$form['#cache'] = TRUE;
}

Thinking this would solve my problem, it breaks the inner workings of Views. It was related to this http://drupal.org/node/500646

digi24’s picture

digi24 commented
Title: Cannot save Feed display, breaks » Cannot save View, breaks on validate
Version: 6.x-2.6 » 6.x-3.x-dev
Status: Closed (fixed) » Active

I am reopening this issue, although I do not know, who the culprit is. The combination of views and imagefield isn't that rare. Is anyone else experiencing these issues? I would like to find out, at which point to address this problem.

My observations:
1. Right now, imagefield does not work reliably without the cache set to true as mentioned in #500646: An unrecoverable error occurred. Form missing from server cache.

2. I actually do not see the connection to APC, I guess people are referring to the general caching mechanisms in Drupal. Excluding the probably relevant views files (views_ui, views/includes/admin.inc) from APC did not solve the problem.

3. Inserting debug output into imagefield_module_alter does not show that it is called before saving a view.

4. Reloading the error page multiple times successfully saves the view. This may be related to the spawning of a new php process or hitting a certain cache

digi24’s picture

digi24 commented
Component: feed displays » Code
hefox’s picture

hefox commented

duplicate of #585886: Call to a member function validate() on a non-object views/includes/admin.inc on line 895 perhaps?

dawehner’s picture

dawehner
Primary language German
commented
Status: Active » Closed (duplicate)

Thanks