[LON-CAPA-users] question about entries in the activity log

[Stuart Raeburn]

Bob,

When you submit a web form, the form data sent by the browser will  
include the names of any input items where type="text", regardless of  
whether anything has been typed in the textbox.

Conversely, if the web form includes a radio button group, the form  
data sent by the browser will only include the (common) name of the  
radio buttons in the group, if one of the buttons has been selected.   
If it so happened that value="" for the selected radio button, then  
the form data would also include a a value of "" for that named element.

If none of the buttons in a radio button group has been selected, then  
the name of that group will not be included in the form data sent by  
the browser.

So, yes, the browser treats radio buttons differently from textboxes,  
such that in any submission you'll always see these three items:

HWVAL_12
HWVAL_16
HWVAL_18

in the "POST" item in the activity log created by a submission,  
because all are textboxes (input type="text"), but you'll only see  
this item:

HWVAL_14

if one of the radio buttons had been selected. And consequently you'll  
never see: HWVAL_14 =  (with the right side blank), because all of the  
radio buttons have an associated value in this case where the radio  
buttons are present because it is a numericalresponse item with  
question type set to exam.


Stuart Raeburn
LON-CAPA Academic Consortium


Quoting Bob Gonzales <rgonzal at binghamton.edu>:

> Stuart,
>
> Thanks for the detailed response!
>
> I'm still confused about the line containing HWVAL_14 only showing up in a
> POST  when there was a radio button selected but not at other times.  The
> lines containing the other HWVAL_'s appear in every POST even when they
> didn't have a value entered, and after they had values submitted.  So, from
> your response, this resulted  because part 13 (HWVAL_14) was set to type
> exam.  In fact, it was set to type exam.  If this is the reason, why are
> exam questions  treated differently than the other questions?
>
> Thanks,
> Bob Gonzales
>
> On Fri, Oct 14, 2016 at 6:16 PM, Stuart Raeburn <raeburn at msu.edu> wrote:
>
>> Bob,
>>
>> I am assuming the question type was set to "exam" for part 13, because
>> /res/sfu/batchelo/chem111/problems/lecture/set7/M.mass.vol.relations.problem
>> is a four part problem containing four numericalresponse items (one for
>> each part).
>>
>> The "POST" entries record the value(s) entered by the student in the web
>> form when a submit button was pushed -- either typed into a textbox in
>> numericalresponse in standard mode, or the value for a radio button which
>> is selected, (i.e., for numericalresponse in exam mode).
>>
>> However, in a multi-part problem, each part has its own "Submit Answer"
>> button, and the only value(s) which will be stored (in the "CSTORE") is/are
>> for the response item(s) belonging to the part for which the "Submit
>> Answer" button was pushed.
>>
>> The activity log shows the following actions:
>>
>> 20:16:47 Submit Answer button pushed for part 11
>> Value for response item in part 11 (id=12) was: .0045 M
>>
>> 20:21:01 Submit Answer button pushed for part 15
>> Value for response item in part 15  (id=16) was: 26.56 g
>>
>> 20:23:46 Submit Answer button pushed for part 17
>> Value for response item in part 17 (id=18) was .282 L
>>
>> The button was never pushed for part 13, so no submission is recorded for
>> response item 14.
>>
>> However, the radio button for response item 14 (in part 13) was checked
>> when the button was pushed for part 15 at 20:21:01, so the POST includes a
>> value for "0.593069306930693" for HWVAL_14, but the submission is not
>> recorded in the student's submission history, because the "Submit Answer"
>> button was not pushed for part 13.
>>
>>
>>
>> Stuart Raeburn
>> LON-CAPA Academic Consortium
>>
>>
>> Quoting Bob Gonzales <rgonzal at binghamton.edu>:
>>
>> Hi,
>>>
>>> I had a student who claims he submitted an answer and didn't get credit
>>> for
>>> it.  This happened during a quiz so he didn't get the problem status, or a
>>> receipt, at the time of the submission.  In looking through the activity
>>> file I see something that I don't understand and was wondering if it was
>>> somehow related.
>>>
>>> The problem has 4 parts.  The 2nd part is a radiobuttonresponse and it is
>>> the one that the student claims to have answered.  In the activity log
>>> excerpt below, the 2nd part is HWVAL_14.
>>>
>>> The thing that I don't understand is that HWVAL_14 doesn't show up in the
>>> POST on line 469 for the 1st part like the other parts do.  Then it shows
>>> up on line 468 with a value.  Line 468 is a POST for the 3rd part as
>>> indicated by the submission in the CSTORE on line 467.  Then on line 465,
>>> the POST for the 4th part, HWVAL_14 is missing again.
>>>
>>> Looking at the issue of not getting credit for the submission, did he
>>> click
>>> on a radio button but not the submit button for that part (the 2nd part).
>>> Then when he submitted his answer for the 3rd part, the 2nd part POST'ed
>>> too but lon-capa didn't grade it since the submit was not for the 3rd
>>> part.  That seems reasonable.
>>>
>>> Is there an explanation for the line HWVAL_14 appearing and disappearing?
>>> I thought maybe the activity log might be corrupt but grading
>>> indicates "Nothing
>>> submitted - no attempts."
>>>
>>> Are these 2 things related?
>>>
>>> ACTIVITY LOG:
>>>
>>> 465     Question 2  2016-10-06 20:23:46  POST
>>> HWVAL_12 = .0045 M
>>> HWVAL_16 = 26.56 g
>>> HWVAL_18 = .282 L
>>> submitted = part_17
>>> symb = uploaded/binghamton/7i6759115966957b9binghamtonl1/default_
>>> 141406948640900531475249776.sequence___32___sfu/batchelo/
>>> chem111/problems/lecture/set7/M.mass.vol.relations.problem
>>> 466    Question 2  2016-10-06 20:23:46  CSTORE
>>> host = binghamtona2
>>> resource.17.18.answername = INTERNAL
>>> resource.17.18.awarddetail = APPROX_ANS
>>> resource.17.18.awardmsg =
>>> resource.17.18.submission = .282 L
>>> resource.17.award = APPROX_ANS
>>> resource.17.awarded = 1
>>> resource.17.awardmsg =
>>> resource.17.duedate = 1475803800
>>> resource.17.hinttries = 1
>>> resource.17.maxtries = 3
>>> resource.17.rndseed = 644052659:1049734531
>>> resource.17.solved = correct_by_student
>>> resource.17.tries = 1
>>> resource.17.type = problem
>>> resource.17.version =
>>>
>>> 467    Question 2  2016-10-06 20:21:05  CSTORE
>>> host = binghamtona2
>>> resource.15.16.answername = INTERNAL
>>> resource.15.16.awarddetail = APPROX_ANS
>>> resource.15.16.awardmsg =
>>> resource.15.16.submission = 26.56 g
>>> resource.15.award = APPROX_ANS
>>> resource.15.awarded = 1
>>> resource.15.awardmsg =
>>> resource.15.duedate = 1475803800
>>> resource.15.hinttries = 1
>>> resource.15.maxtries = 3
>>> resource.15.rndseed = 644052659:1049734531
>>> resource.15.solved = correct_by_student
>>> resource.15.tries = 1
>>> resource.15.type = problem
>>> resource.15.version =
>>>
>>> 468 Question 2  2016-10-06 20:21:01  POST
>>> HWVAL_12 = .0045 M
>>> HWVAL_14 = 0.593069306930693
>>> HWVAL_16 = 26.56 g
>>> HWVAL_18 =
>>> submitted = part_15
>>> symb = uploaded/binghamton/7i6759115966957b9binghamtonl1/default_
>>> 141406948640900531475249776.sequence___32___sfu/batchelo/
>>> chem111/problems/lecture/set7/M.mass.vol.relations.problem
>>> 469  Question 2  2016-10-06 20:16:47  POST
>>> HWVAL_12 = .0045 M
>>> HWVAL_16 =
>>> HWVAL_18 =
>>> submitted = part_11
>>> symb = uploaded/binghamton/7i6759115966957b9binghamtonl1/default_
>>> 141406948640900531475249776.sequence___32___sfu/batchelo/
>>> chem111/problems/lecture/set7/M.mass.vol.relations.problem
>>> 470 Question 2   2016-10-06 20:16:47  CSTORE
>>> host = binghamtona2
>>> resource.11.12.answername = INTERNAL
>>> resource.11.12.awarddetail = APPROX_ANS
>>> resource.11.12.awardmsg =
>>> resource.11.12.submission = .0045 M
>>> resource.11.award = APPROX_ANS
>>> resource.11.awarded = 1
>>> resource.11.awardmsg =
>>> resource.11.duedate = 1475803800
>>> resource.11.hinttries = 1
>>> resource.11.maxtries = 3
>>> resource.11.rndseed = 644052659:1049734531
>>> resource.11.solved = correct_by_student
>>> resource.11.tries = 1
>>> resource.11.type = problem
>>> resource.11.version =
>>>
>>> 471    Question 2  2016-10-06 20:15:10   POST
>>> symb=uploaded/binghamton/7i6759115966957b9binghamtonl1/default_
>>> 141406948640900531475249776.sequence___32___sfu/batchelo/
>>> chem111/problems/lecture/set7/M.mass.vol.relations.problem
>>>
>>> Thanks,
>>> Bob Gonzales