我看到了错误
＆＃34;无法解析关键字u＆＃39; request＆＃39;进入领域...＆＃34;
当我尝试通过HTTP PATCH更新Tastypie实现的TagResource时。但是，如果我在我的资源中覆盖obj_update（），它就可以工作（见下文）。
我在Django V1.6.6和Tastypie V0.11.1上。
urls.py：
...
v1_api = Api(api_name='v1')
...
资源：
class TagResource(ModelResource):
user = fields.ForeignKey(UserResource, 'user')
''' xxx works when this is uncommented-out
def obj_update(self, bundle, skip_errors=False, **kwargs):
bundle.obj = self.get_via_uri(bundle.data.get('resource_uri'), bundle.request)
print "OBJECT WAS FETCHED" # HERE and confirm the above worked
bundle = self.full_hydrate(bundle)
print "HYDRATED!!!"
return self.save(bundle, skip_errors=skip_errors)
'''
class Meta:
queryset = Tag.objects.all()
resource_name = 'tag'
fields = ['tagid', 'short_code', 'name', 'desc', 'user', 'created', 'modified']
allowed_methods = ['get', 'post', 'patch', 'put']
authentication = Authentication()
authorization = Authorization()
模型：
class Tag(models.Model):
tagid = models.CharField(max_length=100)
short_code = models.CharField(max_length=100)
name = models.CharField(max_length=100)
desc = models.CharField(max_length=1000)
user = models.ForeignKey(User)
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
表架构：
sqlite> .schema api_v01_tag
CREATE TABLE "api_v01_tag" (
"id" integer NOT NULL PRIMARY KEY,
"tagid" varchar(100) NOT NULL,
"short_code" varchar(100) NOT NULL,
"name" varchar(100) NOT NULL,
"desc" varchar(1000) NOT NULL,
"user_id" integer NOT NULL REFERENCES "auth_user" ("id"),
"created" datetime NOT NULL,
"modified" datetime NOT NULL
);
CREATE INDEX "api_v01_tag_6340c63c" ON "api_v01_tag" ("user_id");
资源条目：
sqlite> select * from api_v01_tag;
0|ABC|abc||A new description3.|1|2014-09-17 23:20:56|2014-09-22 18:01:27.741707
curl命令和服务器响应：
bash-3.2$ curl --dump-header - -H "Content-Type: application/json" -X PATCH --data '{"desc": "A new description3."}' http://localhost:8000/api/v1/tag/0/
HTTP/1.0 500 INTERNAL SERVER ERROR
Date: Mon, 22 Sep 2014 18:02:29 GMT
Server: WSGIServer/0.1 Python/2.7.5
Access-Control-Allow-Origin: *
Access-Control-Allow-Headers: Content-Type
Content-Type: application/json
Access-Control-Allow-Methods: POST,GET,OPTIONS,PUT,DELETE,PATCH
{"error_message": "Cannot resolve keyword u'request' into field. Choices are: created, desc, id, modified, name, pic, short_code, tagid, user", "traceback": "Traceback (most recent call last):
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 201, in wrapper
response = callback(request, *args, **kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 441, in dispatch_detail
return self.dispatch('detail', request, **kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 464, in dispatch
response = method(request, **kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 1625, in patch_detail
self.update_in_place(request, bundle, deserialized)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 1648, in update_in_place
return self.obj_update(bundle=original_bundle, **kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 2164, in obj_update
bundle.obj = self.obj_get(bundle=bundle, **lookup_kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/tastypie/resources.py\", line 2082, in obj_get
object_list = self.get_object_list(bundle.request).filter(**kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/query.py\", line 593, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/query.py\", line 611, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/sql/query.py\", line 1204, in add_q
clause = self._add_q(where_part, used_aliases)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/sql/query.py\", line 1240, in _add_q
current_negated=current_negated)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/sql/query.py\", line 1103, in build_filter
allow_explicit_fk=True)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/sql/query.py\", line 1363, in setup_joins
names, opts, allow_many, allow_explicit_fk)
File \"/Users/yea/env0/lib/python2.7/site-packages/django/db/models/sql/query.py\", line 1283, in names_to_path
\"Choices are: %s\" % (name, \", \".join(available)))
FieldError: Cannot resolve keyword u'request' into field. Choices are: created, desc, id, modified, name, pic, short_code, tagid, user
"}