get_or_insert的TypeError [英] TypeError with get_or_insert
本文介绍了get_or_insert的TypeError的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的代码.
import webapp2
import json
from google.appengine.ext import ndb
class Email(ndb.Model):
email = ndb.StringProperty()
subscribed = ndb.BooleanProperty()
@staticmethod
def create(email):
ekey = ndb.Key("Email", email)
entity = Email.get_or_insert(ekey)
if entity.email: ###
# This email already exists
return None
entity.email = email
entity.subscribed = True
entity.put()
return entity
class Subscribe(webapp2.RequestHandler):
def post(self):
add = Email.create(self.request.get('email'))
success = add is not None
self.response.headers['Content-Type'] = 'application/json'
obj = {
'success': success
}
self.response.out.write(json.dumps(obj))
app = webapp2.WSGIApplication([
webapp2.Route(r'/newsletter/new', Subscribe),
], debug=True)
这是我的错误.
File "/Users/nick/google-cloud-sdk/platform/google_appengine/google/appengine/ext/ndb/model.py", line 3524, in _get_or_insert_async
raise TypeError('name must be a string; received %r' % name) TypeError: name must be a string; received Key('Email', 'test@test.com')
我想念什么?
推荐答案
该错误是由于将 ekey
(它是 ndb.Key
)作为arg传递给 get_or_insert()
(需要一个字符串):
The error is caused by passing ekey
(which is an ndb.Key
) as arg to get_or_insert()
(which expects a string):
ekey = ndb.Key("Email", email)
entity = Email.get_or_insert(ekey)
由于您似乎要使用用户的电子邮件作为唯一的密钥ID,因此应直接将 email
字符串传递给 get_or_insert()
:
Since it appears you want to use the user's email as a unique key ID you should directly pass the email
string to get_or_insert()
:
entity = Email.get_or_insert(email)
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