Implement assignments of departing flight

core/src/main/java/cz/muni/fi/pa165/core/data/domain/Airport.java

@@ -50,6 +50,14 @@ public class Airport extends DomainEntity {
         arrivingFlights.remove(arrivingFlight);
     }
 
+    public void addDepartingFlight(Flight departingFlight) {
+        departingFlights.add(departingFlight);
+    }
+
+    public void removeDepartingFlight(Flight departingFlight) {
+        departingFlights.remove(departingFlight);
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {

core/src/main/java/cz/muni/fi/pa165/core/facade/airport/AirportFacadeImpl.java

@@ -134,12 +134,34 @@ public class AirportFacadeImpl implements AirportFacade<Long> {
 
     @Override
     public AirportDto addDepartingFlightAssignment(Long airportId, Long flightId) {
-        return null;
+        Airport airport = airportService.findById(airportId)
+                .orElseThrow(ResourceNotFoundException::new);
+        Flight flight = flightService.findById(flightId)
+                .orElseThrow(ResourceNotFoundException::new);
+
+        airport.addDepartingFlight(flight);
+        flight.setDepartingAirport(airport);
+
+        Airport updatedAirport = airportService.update(airportId, airport);
+        flightService.update(flightId, flight);
+
+        return airportMapper.toDto(updatedAirport);
     }
 
     @Override
     public AirportDto deleteDepartingFlightAssignment(Long airportId, Long flightId) {
-        return null;
+        Airport airport = airportService.findById(airportId)
+                .orElseThrow(ResourceNotFoundException::new);
+        Flight flight = flightService.findById(flightId)
+                .orElseThrow(ResourceNotFoundException::new);
+
+        airport.removeDepartingFlight(flight);
+        flight.setDepartingAirport(null);
+
+        Airport updatedAirport = airportService.update(airportId, airport);
+        flightService.update(flightId, flight);
+
+        return airportMapper.toDto(updatedAirport);
     }
 
     @Override