Merge pull request 'show guests km' (#147) from show-guests-km into main

Reviewed-on: #147

src/model/stat.rs

@@ -58,11 +58,25 @@ WHERE l.distance_in_km IS NOT NULL AND l.arrival LIKE '{year}-%' AND b.name != '
         .fetch_one(db)
         .await
         .unwrap()
-        .get::<i64, usize>(0);
+        .get::<i64, usize>(0) as i32;
+
+        let rowed_km_guests = sqlx::query(&format!(
+            "
+SELECT CAST(SUM(l.distance_in_km) AS INTEGER) AS rowed_km 
+FROM user u
+INNER JOIN rower r ON u.id = r.rower_id
+INNER JOIN logbook l ON r.logbook_id = l.id
+WHERE u.is_guest = 1 AND l.distance_in_km IS NOT NULL AND l.arrival LIKE '{year}-%';
+"
+        ))
+        .fetch_one(db)
+        .await
+        .unwrap()
+        .get::<i64, usize>(0) as i32;
 
         Stat {
             name: "Gäste".into(),
-            rowed_km: rowed_km as i32,
+            rowed_km: rowed_km + rowed_km_guests,
         }
     }