访问related_name时,“ManyToManyDescriptor”对象没有属性“all”

我有三个模型:

class Airport(models.Model):
    code = models.CharField(max_length=3)
    city = models.CharField(max_length=64)

    def __str__(self):
        return f"{self.city} ({self.code})"


class Flight(models.Model):
    origin = models.ForeignKey(Airport, on_delete=models.CASCADE, related_name="departures")
    destination = models.ForeignKey(Airport, on_delete=models.CASCADE, related_name="arrivals")
    duration = models.IntegerField( )

    def __str__(self):
        return f"{self.id}: {self.origin} to {self.destination}"


class Passenger(models.Model):
    first = models.CharField(max_length=64)
    last = models.CharField(max_length=64)
    flights = models.ManyToManyField(Flight, blank=True, related_name="passengers")

    def __str__(self):
        return f"{self.first} {self.last}"

我正试图联系某航班的所有乘客 Flight 当我访问 /<int:flight_id> 这样地:

def flight(request, flight_id):
    flight = Flight.objects.get(id=flight_id)
    # return HttpResponse(flight)

    return render(request, "flights/flight.html", {
        "flight": flight,
        "passengers": Flight.passengers # AttributeError: 'ManyToManyDescriptor' object has no attribute 'all'
    })

感谢您的回复

提前谢谢