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  1. Moodle
  2. MDL-61634

PHP7 - question/type/multianswer with zero grade for all subquestions breaks quiz statistics

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Details

    • Bug
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • 3.3.2, 3.4, 3.6.4, 3.7
    • None
    • Questions, Quiz
    • MOODLE_33_STABLE, MOODLE_34_STABLE, MOODLE_36_STABLE, MOODLE_37_STABLE
    • Easy

    Description

      When creating a quizz, only use cloze sub-question with 0 as a grade.

      In /question/type/multianswer/question.php, you get a division by zero in get_max_fraction().

      Then when starting the quizz, you get a database error :

      Default exception handler: Error writing to database Debug: Unknown column 'NAN' in 'field list'\nINSERT INTO mdl_question_attempts[...]

       

      It only happens with PHP 7.

      Attachments

        Issue Links

          blocks

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-65995 Early call to debugging() in core_component leads to fatal error

          • Blocker - Blocks development and/or testing, prevents Moodle from running (applicable to bugs only)
          • Closed
          has been marked as being related by

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-69771 mod_quiz: Attempts with Drag and drop onto image breaks Results / Statistics page

          • Minor - Minor loss of function where workaround is possible
          • Open

          Activity

            People

              Unassigned Unassigned
              ligned David Ligne
              Safat Shahin, Tim Hunt, Ilya Tregubov, Kevin Percy, Mathew May, Mihail Geshoski, Shamim Rezaie, Tim Hunt, Ilya Tregubov, Kevin Percy, Mathew May, Mihail Geshoski, Shamim Rezaie
              Votes:
              6 Vote for this issue
              Watchers:
              11 Start watching this issue

              Dates

                Created:
                Updated: