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[英]Django REST framework: deserializing foreign key fails (many-to-many)
[英]Django REST framework: deserializing an existing foreign key fails
我有一个组织“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,我希望它归当前组织所有。 问题是我不理解为什么本组织没有反序列化? 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
交付给FooSerializer
?
OrganizationSerializer设置为readonly选项=>,您将无法获得任何与当前组织匹配的信息。
您应该看一下: http : //www.django-rest-framework.org/api-guide/relations/#primarykeyrelatedfield
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