don't notify cancelled trips

src/model/trip.rs

@@ -77,8 +77,16 @@ impl Trip {
         .await;
         if same_starting_datetime.len() > 1 {
             for notify in same_starting_datetime {
-                if notify.id != trip_details.id {
-                    // notify everyone except oneself
+                // don't notify oneself
+                if notify.id == trip_details.id {
+                    continue;
+                }
+
+                // don't notify people who have cancelled their trip
+                if notify.cancelled(db) {
+                    continue;
+                }
+
                 if let Some(trip) = Trip::find_by_trip_details(db, notify.id).await {
                     let user = User::find_by_id(db, trip.cox_id as i32).await.unwrap();
                     Notification::create(
@@ -97,7 +105,6 @@ impl Trip {
             }
         }
     }
-    }
 
     pub async fn find_by_trip_details(db: &SqlitePool, tripdetails_id: i64) -> Option<Self> {
         sqlx::query_as!(

src/model/tripdetails.rs

@@ -77,6 +77,10 @@ WHERE day = ? AND planned_starting_time = ?
         .await.unwrap()
     }
 
+    pub fn cancelled(&self, db: &SqlitePool) -> bool {
+        self.max_people == 0
+    }
+
     /// This function is called when a person registers to a trip or when the cox changes the
     /// amount of free places.
     pub async fn check_free_spaces(&self, db: &SqlitePool) {
@@ -85,7 +89,7 @@ WHERE day = ? AND planned_starting_time = ?
             return;
         }
 
-        if self.max_people == 0 {
+        if self.cancelled(db) {
             // Cox cancelled event, thus it's probably bad weather. Don't bother with sending
             // notifications
             return;