fix for BIESt #1078

Merge request studip/studip!657

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/classes/Score.class.php b/lib/classes/Score.class.php
index 5fa80d9..1a1b5d9 100644
--- a/lib/classes/Score.class.php
+++ b/lib/classes/Score.class.php
@@ -166,13 +166,13 @@ class Score
         $statements = [];
         foreach (self::getActivityTables() as $table) {
             $statements[] = "SELECT "
-                . ($table['date_column'] ?: 'mkdate')
+                . ($table['date_column'] ?? 'mkdate')
                 . " AS mkdate FROM "
                 . $table['table']
                 . " WHERE "
-                . ($table['user_id_column'] ?: 'user_id')
+                . ($table['user_id_column'] ?? 'user_id')
                 . " = :user "
-                . ($table['where'] ? (' AND ' . $table['where']) : '');
+                . (!empty($table['where']) ? (' AND ' . $table['where']) : '');
         }
         return join(' UNION ', $statements);
     }