Question

我有一个使用Google App Engine Launcher在本地正常运行的ndb查询，但是当我将应用程序部署到GAE时，查询无法在数据库中找到任何匹配项（我在数据库中以相同的方式在两个环境中创建了条目）

查询是：

user = users.get_current_user()
_website_sect_name = 'TVplus_Access'
account_chk = Account.chk_account(user.email(), _website_sect_name)

ndb模型和功能是：

DEFAULT_WEBSITE_NAME = 'TVplus_Access'

def access_lvl_key(website_sect_name=DEFAULT_WEBSITE_NAME):
    """Constructs a Datastore key for a Access_lvl entity with website_sect_name."""
    return ndb.Key('Access_lvl', website_sect_name)

class Account(ndb.Model):
    """Models an individual Access_lvl entry."""
    email = ndb.StringProperty(required=True)
    nickname = ndb.StringProperty(indexed=True)
    date = ndb.DateTimeProperty(auto_now_add=True)
    author = ndb.UserProperty()

    @classmethod
    def chk_account(self, _email, _website_sect_name):
        no_acct = 0
        try: 
            website_key = ndb.Key('Access_lvl', _website_sect_name)
            account_email = Account.query(Account.email == _email, ancestor=website_key).order(-Account.date).get().to_dict()
            return account_email
        except:
            return no_acct

添加用户的功能是：

class Adduser(webapp2.RequestHandler):
    def post(self):

        website_sect_name = self.request.get('website_sect_name',
                                      DEFAULT_WEBSITE_NAME)
        account = Account(parent=access_lvl_key(website_sect_name))

        if users.get_current_user():
            account.author = users.get_current_user()

        account.email = self.request.get('email')
        account.put()

        account.nickname = self.request.get('nickname')
        account.put()

        query_params = {'website_sect_name': website_sect_name}
        self.redirect('/useradmin?' + urllib.urlencode(query_params))

在我的本地计算机上，Account.chk_account（）的返回响应为：

{＆＃39; date＆＃39 ;: datetime.datetime（2014,7,2,22,6,22,854000），＆＃39;昵称＆＃39;：你＆＃39; Roger＆＃39;，＆＃39;电子邮件＆＃39;：你＆＃39; roger@test.com'，＆＃39;作者＆＃39 ;: users.User（email =＆＃39; admin@test.com'， _USER_ID =＆＃39; 123300217217163669814＆＃39;）}

但是在部署服务器上，该函数返回来自＆＃34; no_acct＆＃34;的除外代码。 0，告诉我chk_account（）由于某种原因出现空（电子邮件帐户roger@test.com已添加到两个环境中的TVplus_Access）

Answer 1

据我所知，GAE远程控制面板有一些检查数据库结构和条目的工具。你可以访问它，看看你添加的帐户是否真的存在吗？

Answer 2

问题出在chk_account = definition中。已删除＆＃39;。订单（-Account.date）＆＃39;来自Account.query（）。更正了代码部分：

@classmethod
    def chk_account(self, _email, _website_sect_name):
        no_acct = 0
        try: 
            website_key = ndb.Key('Access_lvl', _website_sect_name)
            account_email = Account.query(Account.email == _email, ancestor=website_key).get().to_dict()
            return account_email
        except:
            return no_acct

ndb查询在测试中本地工作，但不在部署中工作

2 个答案: