Sorting for participants in Issue #1975

[constantin-kuehne]

This implements sorting on the participants on the evaluation result page. It is only part of the issue #1975.
Co-authored-by: @till2

[niklasmohrin]

I wonder if sorting by the percentage is really what we want here. @janno42 ?

[janno42]

Yes, ordering by percentage of voters is specified in the issue and what we want here.
Finding courses of a certain size will be implemented via the participant count filter.

[richardebeling]

Hey @constantin-kuehne and @till2 do you want to continue working on this or should we take over?

[richardebeling]

@janno42 is this order fine: Courses with multiple evaluations first, then single results, then evaluations with ascending voter percentage (or the other way around if sorted descending)? Especially asking for courses with multiple evaluations, I could see that we'd want to average out the voter percentages of all their evaluations.

[richardebeling]

Offline discussion results:

• We don't really care if single results are above or below the other results. They should however we grouped together.
• For courses with multiple evaluations, it probably makes sense to take the maximum voter participation ratio as a sorting criterion. An evaluation voter ratio gives more information here than a single result voter count, so it should be preferred for sorting

-> proposal:

• Voter ratios are in [0, 1]
• single results get a score of 0 (as they currently do)
• A course's data-order score is the max of the scores of its evaluations

[janno42]

great stuff

[niklasmohrin]

Works nicely, some last questions