MDL-31306 question preview: disable 'Fill correct' for qtypes that can't

2012-01-24 13:27:45 +08:00
parent 58eb3519ea
commit 6bc136feff
4 changed files with 13 additions and 5 deletions
@@ -262,9 +262,10 @@ abstract class question_definition {
    /**
     * What data would need to be submitted to get this question correct.
     * If there is more than one correct answer, this method should just
-     * return one possibility.
+     * return one possibility. If it is not possible to compute a correct
+     * response, this method should return null.
     *
-     * @return array parameter name => value.
+     * @return array|null parameter name => value.
     */
    public abstract function get_correct_response();