Django不会将PATCH请求保存到数据库

Question

我想PATCH在通过Django的REST框架我的数据库中的对象。 该请求在我的后端处理，更新后的属性（ friendship_status ）是我收到的响应的一部分。 但是：该属性未在数据库中更新。 或者，至少它没有显示在Django Admin中。

我在这里想念什么？

请求

fetch(host + '/api/relationships/' + relationshipID + '/', {
  method: 'PATCH',
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Token " + token,
  },
  body: JSON.stringify({
    friendship_status: 'requested',
  }),
})
// plus some .then() method calls

响应

headers:Headers
ok:true
status:200
statusText:undefined
type:"default"
url:"http://localhost:8000/api/relationships/27aae52c-020b-4d3d-8037-03ae005fb7ef/"
_bodyInit:"{"id":"27aae52c-020b-4d3d-8037-03ae005fb7ef","friendship_status":"requested","is_blocked":false,"created":"2018-10-22T09:53:50.550167","modified":"2018-10-22T10:35:16.657392","from_user":29,"to_user":28}"
_bodyText:"{"id":"27aae52c-020b-4d3d-8037-03ae005fb7ef","friendship_status":"requested","is_blocked":false,"created":"2018-10-22T09:53:50.550167","modified":"2018-10-22T10:35:16.657392","from_user":29,"to_user":28}"
__proto__:Object

defaultrouter中

router = DefaultRouter()
router.register(r'relationships', relationship_views.RelationshipViewSet)

ModelViewSet

class RelationshipViewSet(viewsets.ModelViewSet):
    queryset = Relationship.objects.all()
    serializer_class = RelationshipSerializer

    def get_queryset(self):
        return Relationship.objects.filter(from_user=self.request.user)

ModelSerializer

class RelationshipSerializer(serializers.ModelSerializer):
    from_user = AccountSerializer(read_only=True)
    to_user = AccountSerializer(read_only=True)

    class Meta:
        model = Relationship
        fields = '__all__'

模型

class Relationship(models.Model):

    FRIENDSHIP_STATUS_CHOICES = (
        ('ignored', 'Ignored'),
        ('requested', 'Requested'),
        ('accepted', 'Accepted'),
    )

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    from_user = models.ForeignKey('accounts.Account', on_delete=models.CASCADE, related_name='relationships')
    to_user = models.ForeignKey('accounts.Account', on_delete=models.CASCADE, related_name='to_user')
    friendship_status = models.CharField(choices=FRIENDSHIP_STATUS_CHOICES, max_length=20, null=True, blank=True)
    is_blocked = models.BooleanField(default=False)
    created = models.DateTimeField(auto_now_add=True, verbose_name=_('Created'))
    modified = models.DateTimeField(auto_now=True, verbose_name=_('Last modified'))

admin.py

 @admin.register(Relationship)
 class RelationshipAdmin(ExcelExportMixin, admin.ModelAdmin):
     list_display = ('id', 'from_user', 'to_user', 'friendship_status', 'is_blocked', 'created', 'modified')
     search_fields = ('from_user', 'to_user')

Answer 1

我通过重建Docker容器解决了这个问题： docker-compose build 。