我使用backbone-tastypie 来创建嵌套资源。
class ServiceResource(ModelResource):
manager = fields.ToOneField(UserResource, 'manager',full=True)
area = fields.ToOneField(AreaResource, 'area',full=True)
specification = fields.ToManyField('services.api.ServiceSpecResource','servicespec_set',full=True)
class Meta:
queryset = Service.objects.all()
resource_name = 'service'
class ServiceSpecResource(ModelResource):
service = fields.ToOneField(ServiceResource,'service')
servicespecrange = fields.ToManyField('services.api.ServiceSpecRangeResource','servicespecrange_set',full=True)
servicespecconstant = fields.ToManyField('services.api.ServiceSpecConstantResource','servicespecconstant_set',full=True)
servicespecgeneric = fields.ToManyField('services.api.ServiceSpecGenericResource','servicespecgeneric_set',full=True)
class Meta:
queryset = ServiceSpec.objects.all()
resource_name = 'servicespec'
list_allowed_methods = ['get', 'post']
detail_allowed_methods = ['get', 'put', 'delete']
authorization = DjangoAuthorization()
class ServiceSpecRangeResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecRange.objects.all()
resource_name = 'servicespecrange'
class ServiceSpecConstantResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecConstant.objects.all()
resource_name = 'servicespecconstant'
class ServiceSpecGenericResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecGeneric.objects.all()
resource_name = 'servicespecgeneric'
对于获取 ServiceResource 来说它效果很好。我返回一个 Service 对象,其中包含所有 ServiceSpecification,而 ServiceSpecification 又包含所有 ServiceSpecRange/常量等。
将整个嵌套资源放回服务器也适用于现有数据。
但是,每当我尝试一次性发布整个嵌套资源(附加了新服务规范的新服务)时,我得到:
int() 参数必须是字符串或数字,而不是“列表”
我以前遇到过此错误,并发现它与不包含相关资源的resource_uri有关。但在这种情况下,我正在发布 - 所以它不应该抱怨嵌套资源中缺少resource_uri。未包含它们的原因是父资源尚未保存。 tastypie 还不够先进,看不到这个吗?
这是回溯:
{ "error_message":"int() 参数必须是字符串或数字,而不是
'list'", "traceback":"回溯(最近一次调用):
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,第 192 行,
在包装器响应 = 回调(请求,*args,**kwargs)
F> ile \“build/bdist.linux-x86_64/egg/tastypie/resources.py\”,第 397 行,
在dispatch_list中返回self.dispatch('list', request, **kwargs)
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,第 427 行,
在调度响应=方法(请求,**kwargs)
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,行
第1165章
request=request, **self.remove_api_resource_names(kwargs))
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,行
第1783章
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,第743行,
在 Hydro_m2m 中。data[field_name] =
field_object.水合物_m2m(捆绑)
文件“build/bdist.linux-x86_64/egg/tastypie/fields.py”,第 742 行,位于
水合物_m2m m2m_Hydrated.append(self.build_lated_resource(值,
**夸格斯))
文件“build/bdist.linux-x86_64/egg/tastypie/fields.py”,第 593 行,位于
构建相关资源返回
self.resource_from_data(self.fk_resource, 值, **kwargs)
文件“build/bdist.linux-x86_64/egg/tastypie/fields.py”,第 548 行,位于
resource_from_data 返回 fk_resource.obj_update(fk_bundle, **data)
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,行
第1814章
**lookup_kwargs)
文件“build/bdist.linux-x86_64/egg/tastypie/resources.py”,行
第1752章
self.get_object_list(request).filter(**kwargs)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/query.py\”,
第 550 行,在过滤器中返回 self._filter_or_exclude(False, *args,
**夸格斯)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/query.py\”,
第 568 行,在 _filter_or_exclude 中clone.query.add_q(Q(*args, **kwargs))
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py\”,
第 1194 行,在 add_q can_reuse=used_aliases、force_having=force_having)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py\”,
第 1129 行,在 add_filter 连接器中)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/sql/where.py\”,
第 67 行,添加 value = obj.prepare(lookup_type, value)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/sql/where.py\”,
第316行,在准备中返回self.field.get_prep_lookup(lookup_type,
值)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/fields/lated.py\”,
第 136 行,在 get_prep_lookup 中返回 self._pk_trace(value,
'get_prep_lookup',lookup_type)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/fields/lated.py\”,
第 209 行,在 _pk_trace v = getattr(field, prep_func)(lookup_type, v,
**夸格斯)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/fields/init.py\”,
第292行,在get_prep_lookup中返回self.get_prep_value(value)
文件
\“/usr/local/lib/python2.7/site-packages/django/db/models/fields/init.py\”,
第 479 行,在 get_prep_value 中返回 int(value)
类型错误:int() 参数必须是字符串或数字,而不是“列表”” }
编辑:
我相信这个问题是相关的:
https://github.com/toastdriven/django-tastypie/issues/307
连同此测试用例:
https://github.com/joshbohde/django-tastypie/commit/eef8d27fb65d5777a98a3df034af26ceb317deb3
Im using backbone-tastypie to create a nested resource as so.
class ServiceResource(ModelResource):
manager = fields.ToOneField(UserResource, 'manager',full=True)
area = fields.ToOneField(AreaResource, 'area',full=True)
specification = fields.ToManyField('services.api.ServiceSpecResource','servicespec_set',full=True)
class Meta:
queryset = Service.objects.all()
resource_name = 'service'
class ServiceSpecResource(ModelResource):
service = fields.ToOneField(ServiceResource,'service')
servicespecrange = fields.ToManyField('services.api.ServiceSpecRangeResource','servicespecrange_set',full=True)
servicespecconstant = fields.ToManyField('services.api.ServiceSpecConstantResource','servicespecconstant_set',full=True)
servicespecgeneric = fields.ToManyField('services.api.ServiceSpecGenericResource','servicespecgeneric_set',full=True)
class Meta:
queryset = ServiceSpec.objects.all()
resource_name = 'servicespec'
list_allowed_methods = ['get', 'post']
detail_allowed_methods = ['get', 'put', 'delete']
authorization = DjangoAuthorization()
class ServiceSpecRangeResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecRange.objects.all()
resource_name = 'servicespecrange'
class ServiceSpecConstantResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecConstant.objects.all()
resource_name = 'servicespecconstant'
class ServiceSpecGenericResource(ModelResource):
servicespec = fields.ToOneField(ServiceSpecResource,'service_spec')
class Meta:
queryset = ServiceSpecGeneric.objects.all()
resource_name = 'servicespecgeneric'
For getting the ServiceResource it works great. I get back a Service object back which contains all the ServiceSpecification's which in turn has all the ServiceSpecRange's/constants etc.
Putting the whole nested resource back to the server also works fine for existing data.
However, whenever I try to post a whole nested resource in one go (new service with new servicespec attached) I get:
int() argument must be a string or a number, not 'list'
I have had this error before, and found it related to not including a resource_uri to a related resource. But in this case, i'm posting - so it shouldn't be complaining about missing resource_uri's in a nested resource. The reason they aren't included is because the parent resource hasn't been saved yet. Is tastypie not advanced enough to see this?
Here is the traceback:
{ "error_message":"int() argument must be a string or a number, not
'list'", "traceback":"Traceback (most recent call last):
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line 192,
in wrapper response = callback(request, *args, **kwargs)
F> ile \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line 397,
in dispatch_list return self.dispatch('list', request, **kwargs)
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line 427,
in dispatch response = method(request, **kwargs)
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line
1165, in post_list updated_bundle = self.obj_create(bundle,
request=request, **self.remove_api_resource_names(kwargs))
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line
1783, in obj_create m2m_bundle = self.hydrate_m2m(bundle)
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line 743,
in hydrate_m2m bundle.data[field_name] =
field_object.hydrate_m2m(bundle)
File \"build/bdist.linux-x86_64/egg/tastypie/fields.py\", line 742, in
hydrate_m2m m2m_hydrated.append(self.build_related_resource(value,
**kwargs))
File \"build/bdist.linux-x86_64/egg/tastypie/fields.py\", line 593, in
build_related_resource return
self.resource_from_data(self.fk_resource, value, **kwargs)
File \"build/bdist.linux-x86_64/egg/tastypie/fields.py\", line 548, in
resource_from_data return fk_resource.obj_update(fk_bundle, **data)
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line
1814, in obj_update bundle.obj = self.obj_get(request,
**lookup_kwargs)
File \"build/bdist.linux-x86_64/egg/tastypie/resources.py\", line
1752, in obj_get base_object_list =
self.get_object_list(request).filter(**kwargs)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/query.py\",
line 550, in filter return self._filter_or_exclude(False, *args,
**kwargs)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/query.py\",
line 568, in _filter_or_exclude clone.query.add_q(Q(*args, **kwargs))
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py\",
line 1194, in add_q can_reuse=used_aliases, force_having=force_having)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/sql/query.py\",
line 1129, in add_filter connector)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/sql/where.py\",
line 67, in add value = obj.prepare(lookup_type, value)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/sql/where.py\",
line 316, in prepare return self.field.get_prep_lookup(lookup_type,
value)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/fields/related.py\",
line 136, in get_prep_lookup return self._pk_trace(value,
'get_prep_lookup', lookup_type)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/fields/related.py\",
line 209, in _pk_trace v = getattr(field, prep_func)(lookup_type, v,
**kwargs)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/fields/init.py\",
line 292, in get_prep_lookup return self.get_prep_value(value)
File
\"/usr/local/lib/python2.7/site-packages/django/db/models/fields/init.py\",
line 479, in get_prep_value return int(value)
TypeError: int() argument must be a string or a number, not 'list' " }
EDIT:
I believe this issue is related:
https://github.com/toastdriven/django-tastypie/issues/307
Along with this test case:
https://github.com/joshbohde/django-tastypie/commit/eef8d27fb65d5777a98a3df034af26ceb317deb3
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这已在另一个分支中修复。请参阅拉取请求。
This has been fixed in another branch. See the pull request.