add stats

src/model/stat.rs

@@ -0,0 +1,35 @@
+use serde::Serialize;
+use sqlx::{FromRow, SqlitePool};
+
+#[derive(FromRow, Serialize, Clone)]
+pub struct Stat {
+    name: String,
+    rowed_km: i32,
+}
+
+impl Stat {
+    pub async fn get_rowed_km(db: &SqlitePool) -> Vec<Stat> {
+        sqlx::query!(
+            "SELECT u.name AS name, COALESCE(SUM(distance_in_km), 0) as rowed_km
+    FROM user u
+    INNER JOIN (
+        SELECT shipmaster AS user_id, distance_in_km
+        FROM logbook 
+        UNION   
+        SELECT r.rower_id AS user_id, l.distance_in_km
+        FROM logbook l
+        INNER JOIN rower r ON r.logbook_id = l.id 
+    ) AS subquery ON u.id = subquery.user_id
+    GROUP BY u.id ORDER BY rowed_km DESC;"
+        )
+        .fetch_all(db)
+        .await
+        .unwrap()
+        .into_iter()
+        .map(|row| Stat {
+            name: row.name,
+            rowed_km: row.rowed_km.unwrap_or(0),
+        })
+        .collect()
+    }
+}