Question

为什么带有此PUT请求的ManyToManyField资源不会更新？

curl --dump-header - -H "Content-Type: application/json" -X PUT --data '{"uuid":"blah","pass_token":"blah","favorites": ["/api/v1/organizations/1/"]}' http://localhost:8000/api/v1/devices/2/

我收到了这个回复：

HTTP/1.0 400 BAD REQUEST
Date: Wed, 11 Jul 2012 22:21:15 GMT
Server: WSGIServer/0.1 Python/2.7.2
Content-Type: application/json; charset=utf-8

{"favorites": ["\"/api/v1/organizations/1/\" is not a valid value for a primary key."]}

以下是我的资源：

class OrganizationResource(ModelResource):
    parent_org = fields.ForeignKey('self','parent_org',null=True, full=True,blank=True)

    class Meta:
        allowed_methods = ['get',]
        authentication = APIAuthentication()
        fields = ['name','org_type','parent_org']
        filtering = {
            'name': ALL,
            'org_type': ALL,
            'parent_org': ALL_WITH_RELATIONS,
        }
        ordering = ['name',]
        queryset = Organization.objects.all()
        resource_name = 'organizations'

class DeviceResource(ModelResource):
    favorites = fields.ManyToManyField(OrganizationResource,'favorites',null=True,full=True)

    class Meta:
        allowed_methods = ['get','patch','post','put',]
        authentication = APIAuthentication()
        authorization = APIAuthorization()
        fields = ['uuid',]
        filtering = {
            'uuid': ALL,
        }
        queryset = Device.objects.all()
        resource_name = 'devices'
        validation = FormValidation(form_class=DeviceRegistrationForm)

使用OrganizationResource获取此交换：

curl --dump-header - -H "Content-Type: application/json" -X GET http://localhost:8000/api/v1/organizations/1/

HTTP/1.0 200 OK
Date: Wed, 11 Jul 2012 22:38:30 GMT
Server: WSGIServer/0.1 Python/2.7.2
Content-Type: application/json; charset=utf-8

{"name": "name", "org_type": "org_type", "parent_org": null, "resource_uri": "/api/v1/organizations/1/"}

这与django tastypie manytomany field POST json error非常相似，但我没有在ManyToMany关系中使用through属性。

Answer 1

问题原来是验证方法。使用FormValidation意味着像/ api / v1 / organizations / 1 /这样的uri不会验证为Django ORM的ForeignKey。使用自定义验证可以解决问题。

许多Bothans为了给我们这些信息而死了。

Answer 2

您似乎将ManyToManyField中的DeviceResource和ForiegnKey中的OrganizationResource都设置为full=True。

因此，在进行PUT时，Tastypie需要一个完整的对象，或者至少需要一个带有resource_uri的“空白”对象。

尝试使用指定的resource_uri而不仅仅是uri发送对象本身，即： {"resource_uri" : "/api/v1/organizations/1/"}代替"/api/v1/organizations/1/"

curl --dump-header - -H "Content-Type: application/json" -X PUT --data '{"uuid":"blah","pass_token":"blah","favorites": [{"resource_uri" : "/api/v1/organizations/1/"}]}' http://localhost:8000/api/v1/devices/2/

Django Tastypie没有使用ManyToManyField更新资源

2 个答案: