From afb7ec92ff23afdc229d89a29fcc3e73ef785266 Mon Sep 17 00:00:00 2001
From: Dan Poltawski <dan@moodle.com>
Date: Fri, 30 Oct 2015 14:14:24 +0000
Subject: [PATCH] MDL-35982 blog: prevent index throwing errors with 0 courseid

Regression from MDL-49845 where Dave made the page not handle courseid = 0
and so now some urls will send you back to a db error..
---
 blog/index.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/blog/index.php b/blog/index.php
index ddbdf454245..56ab7eb8b91 100644
--- a/blog/index.php
+++ b/blog/index.php
@@ -63,9 +63,9 @@ if ($entryid and !isset($userid)) {
     $userid = $entry->userid;
 }
 
-if (isset($userid) && !isset($courseid)) {
+if (isset($userid) && empty($courseid)) {
     $context = context_user::instance($userid);
-} else if (isset($courseid) && $courseid != SITEID) {
+} else if (!empty($courseid) && $courseid != SITEID) {
     $context = context_course::instance($courseid);
 } else {
     $context = context_system::instance();