improved blackboard submits.

[banana.git] / include / session.inc

diff --git a/include/session.inc b/include/session.inc
index 554ac1fc1397a9c93bbbcdeab7d454a77fc16296..dc90943d66b9418f6777a1c3df82a498274282b9 100644 (file)
--- a/include/session.inc
+++ b/include/session.inc
@@ -5,6 +5,7 @@
     $result=$db->query("SELECT id,examples,nexamples FROM sessions ORDER BY id");
     $SESSIONS_next = -1;
     $SESSIONS_actual = -1;
+    $SESSIONS_n = 0;
   
     while ($session = $result->fetch(PDO::FETCH_ASSOC)) {
       $SESSIONS[$session['id']] = array("id" => $session['id'], "timestr" => date("d.m.Y H:i", $session['id']),
@@ -16,18 +17,23 @@
       if ( strtotime("now") < $session['id'] + 3600  && ( $SESSIONS_actual==-1 || $SESSIONS_actual > $session['id'] )  ) {
         $SESSIONS_actual = $session['id'];
       }
+      $SESSIONS_n++;
     }
     if($SESSIONS_next == -1) unset($SESSIONS_next);
     if($SESSIONS_actual == -1) unset($SESSIONS_actual);
 
     $SESSIONS_totex = 0;
-    foreach ($SESSIONS as $session) {
-      if($session['id'] < $SESSIONS_next) { $SESSIONS_totex += $session['nexamples']; }
+    if(isset($SESSIONS)) {
+      foreach ($SESSIONS as $session) {
+        if($session['id'] < $SESSIONS_next || (! isset($SESSIONS_next)) ) { $SESSIONS_totex += $session['nexamples']; }
+      }
     }
 
     $SESSIONS_totex_nextinc = 0;
-    foreach ($SESSIONS as $session) {
-      if($session['id'] <= $SESSIONS_next) { $SESSIONS_totex_nextinc += $session['nexamples']; }
+    if( isset($SESSIONS) && isset($SESSIONS_next) ) {
+      foreach ($SESSIONS as $session) {
+        if($session['id'] <= $SESSIONS_next) { $SESSIONS_totex_nextinc += $session['nexamples']; }
+      }
     }
   }
 ?>