[LON-CAPA-users] instructor-specific loss of copy/paste in course editor

[Stuart Raeburn]

Hi Doug,

Looking at the LON-CAPA code, I see that the clipboard in the Course  
Editor is generated by the  &print_paste_buffer() routine in  
/home/httpd/lib/perl/Apache/londocs.pm

print_paste_buffer() will display no output if the session environment  
variable: $env{'docs.markedcopies'} is either undefined or empty.

If you have command line access to the server hosting the user's  
session you can display the contents of the session environment via:

/home/httpd/perl/debug/dump_db.pl -u /home/httpd/lonIDs/<session>.id

where <session> is the unique session ID (starts with user's username).

Look for an entry for the key: docs.markedcopies (e.g. pipe output to:  
'grep docs.markedcopies').  The corresponding value for that key  
should be a list of comma-separated numbers.

Log-out will remove the user's session file in /home/httpd/lonIDs.

(Note: there is also a way for a user to view the contents of his/her  
own session file using the web browser, but that needs to be  
configured by the Domain Coordinator).

You might also ask the instructor to log-in (or switch server) to one  
of the MSU servers, and see if the Course Editor clipboard is also  
absent for that instructor in a course, after copying one or more  
items in the Course Editor in a session hosted at a server in the msu  
domain.

Stuart Raeburn
LON-CAPA Academic Consortium


Quoting "Mills, Douglas G" <dmills at illinois.edu>:

> That's a good question and one I wasn't paying attention to at the   
> time. I'll try to catch up with the instructor today to double-check  
>  that.  Her problem though had persisted for a few days if I   
> understand correctly before she contacted me and on at least two   
> computers and two browsers on one or the other of those computers,   
> so it seems unlikely she'd have hit the same access server every   
> time. But I'll sit with her and vary the access servers today if she  
>  has time and report back. Thanks!
>
> Doug
>
> Douglas Mills
> Director of Instructional Technologies
> Department of Chemistry
> University of Illinois
> dmills at illinois.edu<mailto:dmills at illinois.edu>
> (217) 244-5739
>
>
> From: "H. K. Ng" <hkng at fsu.edu<mailto:hkng at fsu.edu>>
> Reply-To: Discussion list for LON-CAPA users   
> <lon-capa-users at mail.lon-capa.org<mailto:lon-capa-users at mail.lon-capa.org>>
> Date: Tuesday, December 2, 2014 at 12:42 PM
> To: Discussion list for LON-CAPA users   
> <lon-capa-users at mail.lon-capa.org<mailto:lon-capa-users at mail.lon-capa.org>>
> Subject: Re: [LON-CAPA-users] instructor-specific loss of copy/paste  
>  in course editor
>
> Hi,
>
> Did both logins go to the same server? Occasionally, an access   
> server may "act up".
>
> -hk
>
> On Tue, Dec 2, 2014 at 12:44 PM, Mills, Douglas G   
> <dmills at illinois.edu<mailto:dmills at illinois.edu>> wrote:
> Hi All,
>
> I have one instructor who has lost the ability to copy content in   
> her course editor. I've watched her try in both Firefox and Chrome   
> with no results (nothing shows up where the clipboard should be   
> beneath the list of files).  I logged into my account on her   
> computer in her browser, entered her course and AM able to copy   
> files in the content editor. It seems to be her account   
> specifically.  Thoughts?  Has anyone else seen this?
>
> Doug
>
> Douglas Mills
> Director of Instructional Technologies
> Department of Chemistry
> University of Illinois
> dmills at illinois.edu<mailto:dmills at illinois.edu>
> (217) 244-5739