- June, 2012: upgraded from 1.9.17 to 2.2.2. I did a full DB audit at the time, and made sure my database definitions (collation/character sets) matched a new 2.2 install
- August, 2012: the wiki problems mentioned above were identified. The problems were intermittent. The debug error messages are well documented in the forums above, as well as the tracker entry.
- Sept., 2012: I added the code snippets for mod/wiki/pagelib.php suggested in the forums and bug tracker. The problems disappeared for all but a handful of students working in an "individual wiki" set for "Separate groups" (there is only one defined group in the course) and "Force Format" set to HTML. However, over the next few weeks, the errors crept back into all wikis.
- Oct. 2012. I successfully upgraded to 2.2.5. Again, almost all of the errors disappeared. At this moment, only a handful of students in a single class (at least that I've heard) have received errors when opening their wiki pages for the first time.
- Today (Oct. 17, 2012), I tried the recommended code snippet on my beta install for mod/wiki/create.php (from tracker, above). A new wiki created after that change worked perfectly...for a bit. Then it stopped working for some students as before.
The errors throughout have not varied materially from the ones documented in the forum/tracker entries above.
I would be very grateful if anyone could help with this. I have full access to the server and error logs, and a full clone of my production data on a test installation. I'm running the following...
- Moodle 2.2.5
- IIS 7.5
- Windows 2008 Server R2
- PHP 5.4.7/64 bit (upgraded Friday, to eliminate that as a variable)
- MySQL 5.1.47
File and MySQL data are stored on a server separate from the web box.