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[Bug 954876] Re: Trying to get property of non-object

To: mahara-contributors@xxxxxxxxxxxxxxxxxxx
From: Son Nguyen <954876@xxxxxxxxxxxxxxxxxx>
Date: Fri, 18 Jan 2013 00:26:49 -0000
Reply-to: Bug 954876 <954876@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Changed in: mahara
     Assignee: Son Nguyen (ngson2000) => (unassigned)

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https://bugs.launchpad.net/bugs/954876

Title:
  Trying to get property of non-object

Status in Mahara ePortfolio:
  Incomplete

Bug description:
  Hi all. We're running Mahara (version 1.4.1testing, Ubuntu Server
  10.04.2 LTS, Apache 2.2.14, PHP 5.3.2-1ubuntu4.9 with Suhosin-Patch
  0.9.29, MySQL 5.1.41) and received the following error. The user
  report is as follows:

  "I got this error when I released an assessed page in Mahara.  I think
  I have seen it before.  It doesn’t seem to cause any issues and it
  doesn’t prevent Mahara use so I am not quite sure what the error is.
  Probably nothing you can do but thought I would mention it anyway."

  Log file shows (all lines prefixed with [Tue Mar 13 19:04:20 2012]
  [error] [client 172.x.x.x], removed for clarity, and sanitised):

  [WAR] ff (lib/group.php:1409) Trying to get property of non-object, referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Trying to get property of non-object", 8, true, true, "/srv/mahara/htdocs/lib/gro...", 1409) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Trying to get property of non-object", "/srv/mahara/htdocs/lib/gro...", 1409, array(size 2)) at /srv/mahara/htdocs/lib/group.php:1409, referer: http://mahara.website.com/view/view.php?id=2158
    * group_get_homepage_view("11") at /srv/mahara/htdocs/group/view.php:75, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1900) Undefined index: , referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Undefined index: ", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1900) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(8, "Undefined index: ", "/srv/mahara/htdocs/lib/vie...", 1900, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1900, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1906) Illegal offset type in isset or empty, referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Illegal offset type in isset or empty", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1906) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(2, "Illegal offset type in isset or empty", "/srv/mahara/htdocs/lib/vie...", 1906, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1906, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1910) Object of class stdClass could not be converted to string, referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * log_message("Object of class stdClass could not be converted to...", 8, true, true, "/srv/mahara/htdocs/lib/vie...", 1910) at /srv/mahara/htdocs/lib/errors.php:446, referer: http://mahara.website.com/view/view.php?id=2158
    * error(4096, "Object of class stdClass could not be converted to...", "/srv/mahara/htdocs/lib/vie...", 1910, array(size 3)) at /srv/mahara/htdocs/lib/view.php:1910, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158
  [WAR] ff (lib/view.php:1910) Unknown view layout (id=), referer: http://mahara.website.com/view/view.php?id=2158
  Call stack (most recent first):, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_layout() at /srv/mahara/htdocs/lib/view.php:1291, referer: http://mahara.website.com/view/view.php?id=2158
    * View->build_column_datastructure(false) at /srv/mahara/htdocs/lib/view.php:1323, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_column_datastructure() at /srv/mahara/htdocs/lib/view.php:1607, referer: http://mahara.website.com/view/view.php?id=2158
    * View->get_blocktype_javascript() at /srv/mahara/htdocs/group/view.php:85, referer: http://mahara.website.com/view/view.php?id=2158
  , referer: http://mahara.website.com/view/view.php?id=2158

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References

[Bug 954876] [NEW] Trying to get property of non-object
From: Paul Vaughan, 2012-03-14