MDL-68099 gradereport_grader: prevent exception without groups

2020-05-18 15:19:05 +02:00
parent 5afef2670e
commit aecc9e7170
1 changed files with 3 additions and 2 deletions
@@ -378,8 +378,9 @@ abstract class grade_report {
                $this->currentgroup = -2; // means can not access any groups at all
            }
            if ($this->currentgroup) {
-                $group = groups_get_group($this->currentgroup);
-                $this->currentgroupname     = $group->name;
+                if ($group = groups_get_group($this->currentgroup)) {
+                    $this->currentgroupname = $group->name;
+                }
                $this->groupsql             = " JOIN {groups_members} gm ON gm.userid = u.id ";
                $this->groupwheresql        = " AND gm.groupid = :gr_grpid ";
                $this->groupwheresql_params = array('gr_grpid'=>$this->currentgroup);