Question

我有一个由组织“拥有”的Foo对象。我从请求处理程序中的登录用户获取当前的组织：

models.py：

class Organization(models.Model):
    name = models.CharField(max_length=255)

class Foo(models.Model):
    ... some other fields ...
    organization = models.ForeignKey(Organization, on_delete=models.CASCADE)

serializers.py：

class FooSerializer(serializers.Serializer):
    id = serializers.IntegerField(read_only=True)
    organization = OrganizationSerializer(read_only=True)

    """ Create and return a new instance, given the validated data """
    def create(self, validatedData):
        return OverlayDesign.objects.create(**validatedData)

    """ Update and return an existing instance, given the validated_data """
    def update(self, instance, validatedData):
        instance.organization = validatedData.get('organization', instance.organization)
        instance.save()
        return instance

views.py：

def createFoo(request):
    data = JSONParser().parse(request)

    # Get the organization of the logged-in user
    data["organization"] = OrganizationSerializer(request.user.account.organization).data

    serializer = FooSerializer(data=data)
    if serializer.is_valid():
        serializer.save()
        return JSONResponse(serializer.data, status=201)
    return JSONErrorResponse(serializer.errors, status=400)

当我创建一个新的Foo时，我希望它由当前的组织拥有。问题是我不明白为什么本组织不被反序列化？无论我做什么，我都会得到：

django.db.utils.IntegrityError: null value in column "organization_id" violates not-null constraint

我应该如何将当前Organization发送到FooSerializer？

Answer 1

使用readonly选项设置OrganizationSerializer =＆gt;你不会得到任何与当前组织相匹配的东西。

你应该看看：http://www.django-rest-framework.org/api-guide/relations/#primarykeyrelatedfield

Django REST框架：反序列化现有外键失败

1 个答案: