Empower our Database object so that it is possible to perform NOT NULL queries (SELEC...

diff --git a/includes/db/Database.php b/includes/db/Database.php
index b26970e..89b6dca 100644 (file)
--- a/includes/db/Database.php
+++ b/includes/db/Database.php
@@ -1489,6 +1489,9 @@ abstract class DatabaseBase implements DatabaseType {
                        } elseif ( $value === null ) {
                                if ( $mode == LIST_AND || $mode == LIST_OR ) {
                                        $list .= "$field IS ";
+                                       if ( $not ) {
+                                               $list .= "NOT ";
+                                       }
                                } elseif ( $mode == LIST_SET ) {
                                        $list .= "$field = ";
                                }