Call to undefined method stdClass::render() in panels.module on line 992

If I delete and recreate the mini-panel, I no longer get that error, so I get it's an upgrade issue.

Having said that, after recreating the minipanel and selecting Flexible for the layout, I get nothing of substance in the content tab. Would you like a separate issues for that? (I haven't yet checked if it's already reported).

I think I just got a -dev release at the wrong time.

I also just found that the clone a panel layout tab is also empty.

I don't have a backup of the minipanel, sorry. I could probably reproduce the issue, because I'm working on a local copy of my site, and I only rsync'd everything yesterday.

That said, how about if I do a CVS checkout of your latest and greatest and see if the issue is still there? Perhaps the dev release just got rolled at a bad point in your committing of changes.

I'm running CVS now without issues, so let's just call it transient and close it.

Thanks for your time!

Hmm. I can still reproduce it.

Here's an 'export' of the panel I'm using.

$mini = new stdClass;
$mini->disabled = FALSE; /* Edit this to true to make a default mini disabled initially */
$mini->api_version = 1;
$mini->name = 'page_heading';
$mini->category = '';
$mini->title = 'Page Heading';
$mini->admin_description = '';
$mini->requiredcontexts = array();
$mini->contexts = array();
$mini->relationships = array();
$display = new panels_display;
$display->api_version = 1;
$display->layout = 'flexible';
$display->layout_settings = FALSE;
$display->panel_settings = FALSE;
$display->cache = FALSE;
$display->title = '';
$display->content = array();
$display->panels = array();
$display->hide_title = PANELS_TITLE_FIXED;
$display->title_pane = '0';
$mini->display = $display;

Steps to reproduce:
1) Create a new mini panel using the flexible format.
2) From the list of mini panels, click the 'Edit' item for your new panel.
3) Click on 'Content' in the bread crumb (is it a breadcrumb - it looks like one in the theme I'm hacking around!) and the error will appear.

I added a print_r($display) prior to that line, and will attach it as text.

Oooh. Looking through the cvs log just reminded me to say: I'm using Panels Everywhere. Perhaps that's significant.

I'm afraid I'm still getting it after doing a CVS update. I'll try to get some more info.

I've found another way to reproduce it:

1) Create a new mini panel with the panany theme installed (not sure panany is significant, but I'm using one of its styles below).
2) Use the flexible layout style but don't worry about modifying the layout (it doesn't make a difference).
3) Seek to change the style for the 'Center' region to "Panany gradient background" and click next.
4) Regardless of whether you select to surround panes or panels, when you cliick the Save button, you get a popup error message:

Unable to complete operation. Fatal error in panels/plugins/display_renderers/panels_renderer_editor.class.php on line 1669: Function name must be a string

Hope that helps. I'll keep using xdebug to try and figure it out.

$style is empty.

Maybe.

I've done some tracing, and found that the function gets called three times. It's only on the last time that it bombs out, by print_r'ing the $display array each time through (Xdebug's interactive examination of variables isn't working for me at the moment :<), I can see that the last time through $display is lacking a lot of info it has on the other calls - not just the renderer argument.

This makes me think that perhaps I didn't give you enough info about my layout for you to be able to reproduce the issue. I'm therefore attaching screenshots of my site template and front page layouts. Both the 'Left sidebar' and 'Page heading' areas in the site template use minipanels. The side bar is a simple column and the heading has two columns, one with just an image and the other with the site name and a suckerfish menu. (Not that I think the actual contents are important).

I'll see if I can use the backtrace to find out more.

Is this good enough? I don't get a rendered page when the problem happens.

Fatal error: Call to undefined method stdClass::render() in /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/panels.module on line 1014

Call Stack:
    0.0003     324688   1. {main}() /home/nigel/websites/crca-website/public_html/index.php:0
    1.5492   62430908   2. theme() /home/nigel/websites/crca-website/public_html/index.php:36
    1.5493   62446928   3. call_user_func_array() /home/nigel/websites/crca-website/public_html/includes/theme.inc:697
    1.5493   62447244   4. panels_everywhere_page_preprocess() /home/nigel/websites/crca-website/public_html/includes/theme.inc:0
    1.5619   62637444   5. ctools_context_handler_render() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels_everywhere/panels_everywhere.module:171
    1.5720   62943720   6. panels_panel_context_render() /home/nigel/websites/crca-website/public_html/sites/all/modules/ctools/includes/context-task-handler.inc:46
    1.5771   63166448   7. panels_render_display() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/plugins/task_handlers/panel_context.inc:290
    1.5781   63210884   8. panels_display->render() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/panels.module:1014
    1.5801   63211208   9. panels_renderer_legacy->render() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/panels.module:686
    1.5801   63211208  10. panels_renderer_legacy->render_regions() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/plugins/display_renderers/panels_renderer_legacy.class.php:58
    1.5839   63212076  11. panels_renderer_legacy->render_pane() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/plugins/display_renderers/panels_renderer_legacy.class.php:106
    1.5840   63212328  12. ctools_content_render() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/plugins/display_renderers/panels_renderer_legacy.class.php:159
    1.5847   63212596  13. panels_mini_panels_mini_content_type_render() /home/nigel/websites/crca-website/public_html/sites/all/modules/ctools/includes/content.inc:269
    1.5850   63214612  14. panels_render_display() /home/nigel/websites/crca-website/public_html/sites/all/modules/panels/panels_mini/plugins/content_types/panels_mini.inc:106

Dump $_SERVER
   $_SERVER['REQUEST_METHOD'] = 'GET'
   $_SERVER['REQUEST_URI'] = '/admin/build/mini-panels/list/page_heading/edit/content'
   $_SERVER['HTTP_USER_AGENT'] = 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.7) Gecko/20100715 Ubuntu/10.04 (lucid) Firefox/3.6.7'
Dump $_REQUEST
   $_REQUEST['q'] = 'admin/build/mini-panels/list/page_heading/edit/content'

Variables in local scope (#14):
  $display = *uninitialized*
  $form_context = *uninitialized*
  $renderer = *uninitialized*

Hmm. Funny that it says $display is completely uninitialised.

I think I've found the problem.

panels_mini_load calls ctools_export_load_object with type 'names' prior to the render call and caches the result. When it's called for rendering, it thus returns just the result of the 'names' invocation, rather than the 'all' data that's needed.

Hope that makes sense :)

Changing 'names' to 'all' on line 136 of panels_mini.module makes it work for me.

By the way, I do still get that other error, so I'll start looking at it now.

I might just be ignorant, but are we looking at the same function? The $all_loaded check isn't in that caching - I'm looking in panels_mini_load and the only $all_loaded I can see is in panels_mini_load_all.

Ah, sorry on both counts.

Hmm. So why does that make it start working? Guess I'll have to look some more!

Morning! :)

I've just updated, and this seems to be working for me now. Will double check when I get back from dropping the son off at school.

Yeah, it looks like it's working fine here. mrlava, would you confirm?

Ah... I was looking in the wrong place. Just hit it again :\

I'm in that situation too - the one I'm editing is being displayed as well.

Confirmed fixed here too. (Sorry for the delay in replying).