Fixes #209

use correct url to redirect to view, fix some missing object warnings.

classes/structure.php

@@ -676,10 +676,15 @@ class mod_attendance_structure {
               GROUP BY ue.userid, ue.status";
         $params = array('zerotime' => 0, 'uid' => $userid, 'estatus' => ENROL_INSTANCE_ENABLED, 'courseid' => $this->course->id);
         $enrolments = $DB->get_record_sql($sql, $params);
-
-        $user->enrolmentstatus = $enrolments->status;
-        $user->enrolmentstart = $enrolments->mintime;
-        $user->enrolmentend = $enrolments->maxtime;
+        if (!empty($enrolments)) {
+            $user->enrolmentstatus = $enrolments->status;
+            $user->enrolmentstart = $enrolments->mintime;
+            $user->enrolmentend = $enrolments->maxtime;
+        } else {
+            $user->enrolmentstatus = '';
+            $user->enrolmentstart = 0;
+            $user->enrolmentend = 0;
+        }
 
         return $user;
     }

manage.php

@@ -46,7 +46,8 @@ $capabilities = array(
     'mod/attendance:changeattendances'
 );
 if (!has_any_capability($capabilities, $context)) {
-    redirect($att->url_view());
+    $url = new moodle_url('/mod/attendance/view.php', array('id' => $cm->id));
+    redirect($url);
 }
 
 $pageparams->init($cm);