当运行此代码,使用相同的SITE_ID:
int_id= int(self.request.get("site_id"))
site_draft = SiteDraft.get_by_id(int_id)
我得到这个错误:
INFO 2016-06-27 12:39:19,040 module.py:788] minisites: "GET /edit/5891733057437696 HTTP/1.1" 500 -
return self.handle_exception(e, self.app.debug)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\lib\webapp2-2.3\webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "C:\Users\Yuri\Documents\WiseStamp\Server\minisites\web\pages\edit_site.py", line 21, in get
self.post(args)
File "C:\Users\Yuri\Documents\WiseStamp\Server\minisites\web\pages\edit_site.py", line 44, in post
site_draft = SiteDraft.get_by_id(int_id)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\utils.py", line 160, in positional_wrapper
return wrapped(*args, **kwds)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 3602, in _get_by_id
return cls._get_by_id_async(id, parent=parent, **ctx_options).get_result()
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\tasklets.py", line 378, in get_result
self.check_success()
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\tasklets.py", line 425, in _help_tasklet_along
value = gen.send(val)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\context.py", line 765, in get
pbs = entity._to_pb(set_key=False).SerializePartialToString()
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 3167, in _to_pb
prop._serialize(self, pb, projection=self._projection)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1422, in _serialize
values = self._get_base_value_unwrapped_as_list(entity)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1192, in _get_base_value_unwrapped_as_list
wrapped = self._get_base_value(entity)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1180, in _get_base_value
return self._apply_to_values(entity, self._opt_call_to_base_type)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1352, in _apply_to_values
value[:] = map(function, value)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1234, in _opt_call_to_base_type
value = _BaseValue(self._call_to_base_type(value))
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1255, in _call_to_base_type
return call(value)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1331, in call
newvalue = method(self, value)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\ext\ndb\model.py", line 1781, in _validate
(value,))
BadValueError: Expected string, got None
它曾经在一天前的工作,但现在它的作品只有20%的时间(这也是奇怪的 - 这似乎是工作一些时间)。什么是更加古怪的是我提供int
作为site_id
,但它告诉我它得到None
。
请指教。
就像要求的一样
纵观详细的堆栈跟踪,注重执行的操作,
我们看
_get_by_id
get_result
_help_tasklet_al
get
_to_pb
_serialize
_get_base_value
_get_base_value
_apply_to_values
_opt_call_to_base
_call_to_base_type
call
_validate
BadValueError: Expected string, got None
我们看到,执行的路径是内部_get_by_id
,它正在处理get_result。因此,一个实体被检索。进一步向下看,我们看到的代码实际上是在验证值检索并在_validate
通话与BadValueError失败:预计串,得到无
怎样才能获得在现有实体错误值。通常,它是为改变模型的结果,你要么
当您更改模型必须考虑实体转移是很重要的。
干杯
Ť