changed the total score to a station ranking on the homepage

app/scripts/database_queries.php

@@ -96,6 +96,17 @@ function get_total_score($con) {
     }
 }
 
+function get_station_ranking($con) {
+    try {
+        $stmt = $con->prepare("SELECT S.name as Stationsname, SUM(P.punkte) as Gesamtpunkte FROM Punkte as P, Station as S WHERE P.s_id = S.s_id AND S.gewertet = \"1\" GROUP BY S.s_id ORDER BY Gesamtpunkte DESC");
+        $stmt->execute();
+        $stmt->setFetchMode(PDO::FETCH_ASSOC);
+        return $stmt;
+    } catch(PDOException $e) {
+        handle_pdo_exception($e);
+    }
+}
+
 function get_station_name($con, $s_id) {
     try {
         $stmt = $con->prepare("SELECT name FROM Station WHERE s_id= :s_id");