Group flagged textanswers by question

[just-spafi]

Fixes #2711

[richardebeling]

both tests now do this, I think it would make more sense to move this into the shared setup code (where we also define flagged_ids)

[just-spafi]

test_correct_answers_show_up checks first if there aren't any flagged textanswers, thats why I kept it duplicated

[richardebeling]

I may just be too tired, but is there any value in having the textanswers be stored in two levels of nested lists here, or could we flatten that to just a one-dimensional list?

[just-spafi]

I also thought about that, but was too tired to think about it. I'll see if something breaks, when I change it.

[niklasmohrin]

@just-spafi do you want to keep working on this, or should we take over / assign this issue to someone else?

[just-spafi]

@just-spafi do you want to keep working on this, or should we take over / assign this issue to someone else?

I plan on finishing this in the next two weeks :)

[niklasmohrin]

cool, no stress :)

(quick heads up if you haven't heard, but tomorrow is one of the rare days on which we won't have a development meeting; we will meet again next week. of course, feel free to reach out on github at any other time too)

[richardebeling]

    flagged_textanswers = TextAnswer.objects.filter(
        # is_flagged=True,
        contribution__evaluation__course__semester=semester,
    ).order_by("contribution__evaluation", "assignment__questionnaire", "assignment__question")

    my_textanswers = {
        evaluation: {
            questionnaire: list(answers)
            for questionnaire, answers in itertools.groupby(evaluation_answers, key=lambda x: x.assignment.questionnaire)
        }
        for evaluation, evaluation_answers in itertools.groupby(flagged_textanswers, key=lambda x: x.contribution.evaluation)
    }

    for evaluation, questionnaires in my_textanswers.items():
        print(evaluation)
        for questionnaire, answers in questionnaires.items():
            print("    ", questionnaire)
            for answer in answers:
                print("        ", answer.answer)