[LON-CAPA-users] Managing Time Slots - How to set the parameter "Period of time slot is unique"

[Stuart Raeburn]

Hi,

> set the parameter period of time slot is unique", which I will
> abbreviate as "POTSIU".  Does POTSIU have anything to do with
> preventing a student from signing up for more than one time slot during
> the specified period?

Yes.

A slot can include start and end date/time for:
"Period of time when this slot can only be uniquely chosen"

When a student reserves a slot where the time period from start to end  
for "uniquely chosen" is defined, this will prevent that same student  
from reserving a new slot for which the time between slot start and  
slot end falls within the interval between the start and end time for  
"uniquely chosen" for the existing (reserved) slot.

> (Assume the three slot intervals are mutually exclusive.)  Should I set
> POTSIU for all three time slots to the time interval (t1, t5 + 60 min)?

If you do this then a student will only be able to reserve one of  
Slot_1, Slot_2, or Slot_3.

> I would like a student who has signed up for Slot_1 but did not attend
> Slot_1, for example, to be able to sign up to attend a later slot if
> there are still vacancies in a later slot.
>

The use case for which "uniquely chosen" slots were originally  
designed did not allow students to reserve a second slot within the  
"uniquely chosen" period, if a slot had already been reserved,  
regardless of whether the student actually attended the reserved slot  
or not.

To support that capability with the current mechanism a Course  
Coordinator (CC) would need to use the Slot Management interface to  
delete reserved slot(s) for student(s), (who did not attend them)  
after the corresponding slot start date(s).  Once that had been done  
each student would then be able to reserve a later slot (assuming  
vacancies still existed).

Deletion would be needed because otherwise the student would already  
have a slot reserved within the "uniquely chosen" time interval.

To avoid the need for CC intervention, "uniquely chosen" slot  
functionality in LON-CAPA would need to be modified, when determining  
if the student could make a new reservation during the "uniquely  
chosen" interval, to determin whether the student ever checked-in to a  
slot he/she had reserved.


Stuart Raeburn
LON-CAPA Academic Consortium


Quoting Amos Lee <lee at math.usask.ca>:

> Hi All,
>
> When setting up time slots, I'm not exactly sure I understand how to
> set the parameter "period of time slot is unique", which I will
> abbreviate as "POTSIU".  Does POTSIU have anything to do with
> preventing a student from signing up for more than one time slot during
> the specified period?
>
>    Say, I want to have three 60-min time slots for running the same
> test made available to students to sign up:
>
> Time Slot_n: (start time, end time) on Day_n
> Time Slot_1: (t1, t1 + 60 min) on Day_1
> Time Slot_2: (t3, t3 + 60 min) on Day_2
> Time Slot_3: (t5, t5 + 60 min) on Day_3
>
> (Assume the three slot intervals are mutually exclusive.)  Should I set
> POTSIU for all three time slots to the time interval (t1, t5 + 60 min)?
> Or should I
>
> 1. set "POTSIU" for Slot_1 to (t1, t1 + 60 min),
> 2. set "POTSIU" for Slot_2 to (t3, t3 + 60 min), and
> 3. set "POTSIU" for Slot_3 to (t5, t3 + 60 min)?
>
> I would like a student who has signed up for Slot_1 but did not attend
> Slot_1, for example, to be able to sign up to attend a later slot if
> there are still vacancies in a later slot.
>
> Thanks,
>
> Amos Lee
> Math & Stats
> Univ of Sask
>