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  1. Moodle
  2. MDL-35620

Question engine cannot cope with a question variable called "0"

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 2.2.5, 2.3.2, 2.4
    • Fix Version/s: 2.2.6, 2.3.3
    • Component/s: Questions
    • Labels:
    • Testing Instructions:
      Hide

      The unit tests are a reasonable test of this, but to be on the safe side:

      1. Preview a couple of questions, including a shortanswer question using deferred feedback behaviour, and another qtype using a different behaviour.

      Show
      The unit tests are a reasonable test of this, but to be on the safe side: 1. Preview a couple of questions, including a shortanswer question using deferred feedback behaviour, and another qtype using a different behaviour.
    • Affected Branches:
      MOODLE_22_STABLE, MOODLE_23_STABLE, MOODLE_24_STABLE
    • Fixed Branches:
      MOODLE_22_STABLE, MOODLE_23_STABLE
    • Pull Master Branch:

      Description

      It is, of course, a really bad idea to use a question variable called 0. However, it turns out that the OU has a lot of Opaque questions (https://github.com/moodleou/moodle-qtype_opaque) that do just that, and it is impossible to change it now.

      Amazingly, the system can actually cope with such silly names, except for one place where we do a sloppy test for whether the name is NULL, so I will fix that.

      Also, interestingly, <input name="0" ... /> is valid HTML, so supporting this is not totally crazy.

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            • Assignee:
              timhunt Tim Hunt
              Reporter:
              timhunt Tim Hunt
              Integrator:
              Eloy Lafuente (stronk7)
              Tester:
              Dan Poltawski
              Participants:
              Component watchers:
              Tim Hunt, Andrew Nicols, Mathew May, Michael Hawkins, Shamim Rezaie, Simey Lameze
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              Dates

              • Created:
                Updated:
                Resolved:
                Fix Release Date:
                12/Nov/12