allow trip to be deleted if noone has registered yet

README.md

@@ -3,7 +3,7 @@
 
 # Notes / Bugfixes
 - [ ] Allow cox to edit own trip
-	- [ ] Nobody has registered yet -> deletable
+	- [x] Nobody has registered yet -> deletable
 	- [ ] Change max_people (to be settable to 0)
 	- [ ] Change note
 

src/model/trip.rs

@@ -50,7 +50,7 @@ WHERE day=?
         ret
     }
 
-    async fn get_all_rower_for_id(db: &SqlitePool, id: i64) -> Vec<Registration> {
+    async fn get_all_rower_for_id(db: &SqlitePool, trip_id: i64) -> Vec<Registration> {
         sqlx::query_as!(
             Registration,
             "
@@ -58,7 +58,7 @@ SELECT
     (SELECT name FROM user WHERE user_trip.user_id = user.id) as name,
     (SELECT created_at FROM user WHERE user_trip.user_id = user.id) as registered_at 
 FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM trip WHERE id = ?)",
-            id
+            trip_id
         )
         .fetch_all(db)
         .await
@@ -112,7 +112,7 @@ FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM trip WHERE i
         }
     }
 
-    pub async fn delete(db: &SqlitePool, user_id: i64, planned_event_id: i64) {
+    pub async fn delete_by_planned_event_id(db: &SqlitePool, user_id: i64, planned_event_id: i64) {
         let _ = sqlx::query!(
             "DELETE FROM trip WHERE cox_id = ? AND planned_event_id = ?",
             user_id,
@@ -122,9 +122,44 @@ FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM trip WHERE i
         .await
         .is_ok();
     }
+
+    pub(crate) async fn delete(
+        db: &SqlitePool,
+        user_id: i64,
+        trip_id: i64,
+    ) -> Result<(), TripDeleteError> {
+        let registered_rower = Self::get_all_rower_for_id(db, trip_id).await;
+        if registered_rower.len() > 0 {
+            return Err(TripDeleteError::SomebodyAlreadyRegistered);
+        }
+
+        let trip_cox = sqlx::query!("SELECT cox_id FROM trip WHERE id = ?", trip_id)
+            .fetch_one(db)
+            .await
+            .unwrap(); //TODO: fixme
+        if trip_cox.cox_id != user_id {
+            return Err(TripDeleteError::NotYourTrip);
+        }
+
+        sqlx::query!(
+            "DELETE FROM trip WHERE cox_id = ? AND id = ?",
+            user_id,
+            trip_id
+        )
+        .execute(db)
+        .await
+        .unwrap(); //TODO: fixme
+
+        Ok(())
+    }
 }
 
 pub enum CoxHelpError {
     AlreadyRegisteredAsRower,
     AlreadyRegisteredAsCox,
 }
+
+pub enum TripDeleteError {
+    SomebodyAlreadyRegistered,
+    NotYourTrip,
+}

src/rest/cox.rs

@@ -7,7 +7,7 @@ use rocket::{
 use sqlx::SqlitePool;
 
 use crate::model::{
-    trip::{CoxHelpError, Trip},
+    trip::{CoxHelpError, Trip, TripDeleteError},
     tripdetails::TripDetails,
     user::CoxUser,
 };
@@ -53,15 +53,27 @@ async fn join(db: &State<SqlitePool>, planned_event_id: i64, cox: CoxUser) -> Fl
     }
 }
 
+#[get("/remove/trip/<trip_id>")]
+async fn remove_trip(db: &State<SqlitePool>, trip_id: i64, cox: CoxUser) -> Flash<Redirect> {
+    match Trip::delete(db, cox.id, trip_id).await {
+        Ok(_) => Flash::success(Redirect::to("/"), "Erfolgreich abgemeldet!"),
+        Err(TripDeleteError::SomebodyAlreadyRegistered) => Flash::error(
+            Redirect::to("/"),
+            "Ausfahrt kann nicht gelöscht werden, da bereits jemand registriert ist!",
+        ),
+        Err(TripDeleteError::NotYourTrip) => {
+            Flash::error(Redirect::to("/"), "Nicht deine Ausfahrt!")
+        }
+    }
+}
+
 #[get("/remove/<planned_event_id>")]
 async fn remove(db: &State<SqlitePool>, planned_event_id: i64, cox: CoxUser) -> Flash<Redirect> {
-    //TODO: Check if > 2 hrs to event
-
-    Trip::delete(db, cox.id, planned_event_id).await;
+    Trip::delete_by_planned_event_id(db, cox.id, planned_event_id).await;
 
     Flash::success(Redirect::to("/"), "Erfolgreich abgemeldet!")
 }
 
 pub fn routes() -> Vec<Route> {
-    routes![create, join, remove]
+    routes![create, join, remove, remove_trip]
 }

templates/index.html.tera

@@ -179,6 +179,7 @@
             </div>
             {% endif %}
           </div>
+	  <div><a href="/cox/remove/trip/{{ trip.id }}">LÖSCHEN</a></div>
         </div>
         <div class="sidebar-overlay" data-trigger="detailTrip{{ trip.trip_details_id }}"></div>
         {% endfor %}