MDL-34532 quiz reports: error when showing users without attempts.

We were not checking if attempt state was null before trying to convert it to a string.
2012-07-27 23:21:32 +01:00
parent 55a568fa7d
commit f8b665224f
1 changed files with 5 additions and 1 deletions
@@ -152,7 +152,11 @@ abstract class quiz_attempts_report_table extends table_sql {
     * @return string HTML content to go inside the td.
     */
    public function col_state($attempt) {
-        return quiz_attempt::state_name($attempt->state);
+        if (!is_null($attempt->attempt)) {
+            return quiz_attempt::state_name($attempt->state);
+        } else {
+            return  '-';
+        }
    }

    /**