X-Git-Url: https://git.treefish.org/banana.git/blobdiff_plain/3f75cb10d008938dca476577d6256765093d1932..af8ef5bea80923e27426cb4852c4a4a9fa2c0adc:/admin/summary.php

diff --git a/admin/summary.php b/admin/summary.php
index 0cd5467..cac27fc 100644
--- a/admin/summary.php
+++ b/admin/summary.php
@@ -4,6 +4,11 @@
   require 'include/session.inc';
   require 'include/common.inc';
 
+  if ($db->query("SELECT COUNT(*) FROM students")->fetch(PDO::FETCH_NUM)[0] == 0) {
+    block("red", "no students registered");
+    exit;
+  }
+
   block("black", "summary of everything for " . date("d.m.Y H:i"));
 
   $result = $db->query("SELECT firstname, lastname, mnumber, blackboard FROM students ORDER BY lastname");