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-rw-r--r--plugins/database_attachments/database_attachments.php6
1 files changed, 4 insertions, 2 deletions
diff --git a/plugins/database_attachments/database_attachments.php b/plugins/database_attachments/database_attachments.php
index 5ec351404..e4abf937e 100644
--- a/plugins/database_attachments/database_attachments.php
+++ b/plugins/database_attachments/database_attachments.php
@@ -126,8 +126,10 @@ class database_attachments extends filesystem_attachments
*/
function cleanup($args)
{
- $cache = $this->get_cache();
- $cache->remove($args['group'], true);
+ // check if cache object exist, it may be empty on session_destroy (#1489726)
+ if ($cache = $this->get_cache()) {
+ $cache->remove($args['group'], true);
+ }
}
/**