Question

我试图通过覆盖this.route.data .pipe( map( data => data.title) ) .subscribe(title => console.log(title));的{{1}}方法将模型字段设置为经过身份验证的用户，但是我收到错误。

这是我的模特：

perform_create()

这是我的序列化器：

viewset

这是我的观点集：

class Reservation(models.Model):
    booking = models.CharField(max_length=15, primary_key=True)
    creator = models.ForeignKey(User, on_delete=models.PROTECT, related_name='user_reservations')
    agency = models.ForeignKey('GeneralApp.Agency', on_delete=models.PROTECT, related_name='agency_reservations')
    comment = models.TextField(null=True, blank=True)
    status = models.ForeignKey(ReservationStatus, on_delete=models.PROTECT, related_name='status_reservations')
    arrival_date = models.DateField()
    departure_date = models.DateField()
    register_date = models.DateField(auto_now_add=True)
    confirmation = models.CharField(max_length=15, null=True, blank=True)
    is_invoiced = models.BooleanField(default=False)

    def __str__(self):
        return "[{}]{}".format(self.booking, self.agency)

    def clean(self, *args, **kwargs):
        if self.arrival_date >= self.departure_date:
            raise ValidationError('Departure date must be later than Arrival date.')
        elif self.arrival_date <= timezone.datetime.now().date():
            raise ValidationError('Arraival date must be later than today.')

    def save(self, *args, **kwargs):
        self.full_clean()
        super(Reservation, self).save(*args, **kwargs)

这是我得到的错误：

class ReservationSerializer(serializers.HyperlinkedModelSerializer):
    creator = serializers.ReadOnlyField(source='creator.username')

    class Meta:
        model = models.Reservation
        fields = ('booking', 'creator', 'agency', 'comment', 'status', 'arrival_date', 'departure_date')

我试图遵循http://www.django-rest-framework.org/tutorial/4-authentication-and-permissions/#associating-snippets-with-users中的指示，但显然我做错了。

Answer 1

这只是一个愚蠢的错误：我将字段的名称从owner更改为creator，但我忘了在perform_create()方法中更改它：

def perform_create(self, serializer):
        serializer.save(creator=self.request.user)

Django休息框架覆盖创建上升错误

1 个答案: