Django Tastypie没有使用ManyToManyField更新资源

Question

为什么我的资源没有使用此PUT请求更新ManyToManyField？

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/ 

我得到这样的回应：

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."]} 

这里是我的资源：

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) 

一坐上OrganizationResource给出了这样的对话：

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/"} 

这是非常类似于django tastypie manytomany field POST json error，但我没有在我的ManyToMany关系上使用通过属性。

Answer 1

问题resource_uri竟然是验证方法。使用FormValidation意味着uri like/api/v1/organizations/1 /不会验证为Django ORM的ForeignKey。使用自定义验证来修复问题。

许多Bothans为了给我们带来这些信息而死亡。

Answer 2

看起来你在OrganizationResource设置DeviceResource都ManyToManyField和ForiegnKey是full=True。

所以当做一个PUT时，Tastypie需要给它一个完整的对象，或者至少有一个带有resource_uri的“空白”对象。

尝试发送的对象本身具有所指定的，而不是仅仅的URI即： {"resource_uri" : "/api/v1/organizations/1/"}而不是"/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/