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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.

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              Unassigned Unassigned
              ligned David Ligne
              Safat Shahin, Tim Hunt, Amaia Anabitarte, Bas Brands, Carlos Escobedo, Ferran Recio, Ilya Tregubov, Kevin Percy, Laurent David, Mathew May, Mihail Geshoski, Sabina Abellan, Sara Arjona (@sarjona), Shamim Rezaie, Tim Hunt, Amaia Anabitarte, Bas Brands, Carlos Escobedo, Ferran Recio, Ilya Tregubov, Kevin Percy, Laurent David, Mathew May, Mihail Geshoski, Sabina Abellan, Sara Arjona (@sarjona), Shamim Rezaie
              Votes:
              6 Vote for this issue
              Watchers:
              11 Start watching this issue

              Dates

                Created:
                Updated: