Add notification to controllers on schedule change

emgauwa-lib/src/db/junction_relay_schedule.rs

@@ -45,6 +45,23 @@ impl DbJunctionRelaySchedule {
 		.map_err(DatabaseError::from)
 	}
 
+	pub async fn get_relays(
+		conn: &mut PoolConnection<Sqlite>,
+		schedule: &DbSchedule,
+	) -> Result<Vec<DbRelay>, DatabaseError> {
+		sqlx::query_as!(
+			DbRelay,
+			r#"SELECT relays.* FROM relays INNER JOIN junction_relay_schedule
+			ON junction_relay_schedule.relay_id = relays.id
+			WHERE junction_relay_schedule.schedule_id = ?
+			ORDER BY junction_relay_schedule.weekday"#,
+			schedule.id
+		)
+		.fetch_all(conn.deref_mut())
+		.await
+		.map_err(DatabaseError::from)
+	}
+
 	pub async fn get_schedule(
 		conn: &mut PoolConnection<Sqlite>,
 		relay: &DbRelay,