From b32bbab698389b281ddf7f102ed34a35286db6fd Mon Sep 17 00:00:00 2001
From: stronk7 <stronk7>
Date: Sun, 7 Sep 2003 21:40:52 +0000
Subject: [PATCH] Modified a bit the xx_get_participants() function to avoid
 non existing activities warnings.

---
 mod/assignment/lib.php |  6 ++++--
 mod/forum/lib.php      | 12 ++++++++----
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/mod/assignment/lib.php b/mod/assignment/lib.php
index 9e36202199..710acfb53c 100644
--- a/mod/assignment/lib.php
+++ b/mod/assignment/lib.php
@@ -520,8 +520,10 @@ function assignment_get_participants($assignmentid) {
                                        u.id = a.teacher");
 
     //Add teachers to students
-    foreach ($teachers as $teacher) {
-        $students[$teacher->id] = $teacher;
+    if ($teachers) {
+        foreach ($teachers as $teacher) {
+            $students[$teacher->id] = $teacher;
+        }
     }
     //Return students array (it contains an array of unique users)
     return ($students);
diff --git a/mod/forum/lib.php b/mod/forum/lib.php
index eccee98eb6..9732a03dac 100644
--- a/mod/forum/lib.php
+++ b/mod/forum/lib.php
@@ -2138,12 +2138,16 @@ function forum_get_participants($forumid) {
                                          u.id = r.userid");
 
     //Add st_posts to st_subscriptions
-    foreach ($st_posts as $st_post) {
-        $st_subscriptions[$st_post->id] = $st_post;
+    if ($st_posts) {
+        foreach ($st_posts as $st_post) {
+            $st_subscriptions[$st_post->id] = $st_post;
+        }
     }
     //Add st_ratings to st_subscriptions
-    foreach ($st_ratings as $st_rating) { 
-        $st_subscriptions[$st_rating->id] = $st_rating;
+    if ($st_ratings) {
+        foreach ($st_ratings as $st_rating) { 
+            $st_subscriptions[$st_rating->id] = $st_rating;
+        }
     }
     //Return st_subscriptions array (it contains an array of unique users)
     return ($st_subscriptions);
-- 
2.39.5