Issue: ErrorException: Fatal Error: Call to a member function thumbnail() on a non-object

Issue Tools
- View Changes

November 23, 2015 1:44 PM
WebFusion2

New Member
ErrorException: Fatal Error: Call to a member function thumbnail() on a non-object

Getting this error every time a image file attachment is added

Hello,

This error is showing up in the Xenforo Server Error Logs every time someone adds an image file attachment to the wiki:

Code:

ErrorException: Fatal Error: Call to a member function thumbnail() on a non-object - vault/core/controller/dm/attach/thumb/xf.php:88

Is this a server-issue (i.e. something that needs to be configured), or a bug in VW?

P.S. We're loving the wiki system!

Issue Details

Issue Number 4454

Issue Type Bug

Project VaultWiki 4.x Series

Category Attachments

Status Fixed

Priority 4 - Warnings / Script Errors

Affected Version 4.0.7

Fixed Version 4.0.8

Milestone (none)

Software DependencyAny

License TypePaid

Users able to reproduce bug 0

Users unable to reproduce bug 0

Attachments 0

Assigned Users (none)

Tags attachments, error

November 23, 2015 2:12 PM
pegasus

VaultWiki Team
What do you have selected in AdminCP > Options / Setup > Options > Attachments > Default Image Processor?

This can occur if you use a custom processor (not GD or ImageMagick), AND if that processor does not extend from XenForo_Image_Abstract, AND if that processor does not function a thumbnail function. If this is the case, then it is a bug in the custom processor.

I have confirmed that all of the default image processors provided by XenForo provide the thumbnail function.

It is also possible if one of the following functions does not exist in your PHP installation:
imagecreatefromgif - PHP compiled --with-gd
imagecreatefrompng - PHP compiled --with-png-dir
imagecreatefromjpeg - PHP compiled --with-jpeg-dir

In this case, VaultWiki could handle the missing capability more gracefully. I've confirmed this as a bug for this reason.

In vault/core/controller/dm/attach/thumb/xf.php, find:

Code:

$image->thumbnail($width, $height);

Before it, add:

Code:

if (empty($image)) return '';
Reply
November 23, 2015 2:19 PM

WebFusion2

New Member

Hmmm....the "PHP built-in GD image library" is the one that is selected (the default selection).

Reply
November 23, 2015 2:25 PM

WebFusion2

New Member

Yep, just confirmed that GD library is enabled with phpinfo.php:

GD Support enabled
GD Version bundled (2.1.0 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.3.11
GIF Read Support enabled
GIF Create Support enabled
JPEG Support enabled
libJPEG Version 6b
PNG Support enabled
libPNG Version 1.2.49
WBMP Support enabled
XPM Support enabled
libXpm Version 30411
XBM Support enabled

Reply
November 23, 2015 2:29 PM

pegasus

VaultWiki Team

Marked as fixed in the next release. Even though the installer will not set the "is an image type" value if the required functions are not compiled in PHP, it was possible for an admin to manually turn this on anyway. In the next release, it will not be possible to turn on manually without the required functions. For existing misconfigurations, attempts to make the thumbnail will fail silently, rather than throw a fatal error.

Reply

+ Reply

All times are GMT -4. The time now is 9:11 AM.

This site uses cookies to help personalize content, to tailor your experience, and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.

Learn more… Accept Remind me later

Welcome to VaultWiki.org, home of the wiki add-on for vBulletin and XenForo!

Issue: ErrorException: Fatal Error: Call to a member function thumbnail() on a non-object

Issue Tools