更新相关/嵌套资源(user / userprofile) - 在PATCH上查看重复键错误

时间:2012-08-06 17:39:30

标签: django tastypie

我有一个UserProfile类:

class UserProfile(models.Model):
    user = models.OneToOneField(User)
    bio = models.CharField(max_length=180, null=True)

它与User类相关联。

AUTH_PROFILE_MODULE = 'plantvillage.userprofile'

我想通过tastypie提供一个API,以便可以同时管理用户详细信息和用户配置文件详细信息。如果可能的话,我想公开两个接口(一个用于用户,一个用于userprofiles)。

我设置了我的资源:

class ProfileResource(ModelResource):
    class Meta:
        queryset = UserProfile.objects.all()
        resource_name = 'profile'
        authentication = ApiKeyAuthentication()
        authorization = DjangoAuthorization()
        allowed_methods = ['get', 'put', 'patch']

class UserResource(ModelResource):
    profile = fields.ToOneField(ProfileResource, 'userprofile', full=True)

    class Meta:
        queryset = User.objects.filter(is_staff=False)
        resource_name = 'usr'
        authentication = ApiKeyAuthentication()
        authorization = DjangoAuthorization()

        excludes = ['password', 'is_active', 'is_staff']

然而,更新

curl --dump-header - -H "Authorization: ApiKey abc6@abc.com:1432ece6a1f34fae24a77315b5c924f756f13807" -H "Content-Type: application/json" -X PATCH --data '{"profile":{"bio":"aquarium"}}' "http://127.0.0.1:8000/api/usr/25/"

导致此错误:

"error_message": "duplicate key value violates unique constraint \"plantvillage_userprofile_user_id_key\"\n", "traceback": "Traceback (most recent call last):\n\n  File \"/usr/local/lib/python2.6/dist-packages/django_tastypie-0.9.12_alpha-py2.6.egg/tastypie/resources.py\", line 196, in wrapper\n

我可以做些什么改变来使这项工作?

1 个答案:

答案 0 :(得分:2)

您可以完全摆脱UserResource并添加您想要公开的User模型中的字段:

username = fields.CharField( attribute = 'user__username' )

这不仅会在GET请求的情况下从User模型发送正确的数据,还会处理更新。