当我尝试将用户传递到创建的项目模型时,我总是收到错误消息。通过params [“ user”]登录后,我可以访问该用户对象,并且出现错误消息
我正在尝试与应用程序引擎ndb相同,并使用户与他们创建的记录匹配,这样,当他们登录时,他们只能查看其记录。因此,我试图让某人登录,然后根据他们的登录信息,我们可以使用他们的信息来保存他们创建的项目。
以下是我对项目模型和api的代码片段
from flask import jsonify, make_response
import re
from datetime import datetime
from google.cloud import ndb
from google.cloud import storage
#from dateutil import tz
from models.v1.user import User
from models import get_db
class Project(ndb.Model):
user = ndb.KeyProperty(kind=User)
funds_raised = ndb.FloatProperty(default=0.0)
live_date = ndb.DateTimeProperty()
finish_date = ndb.DateTimeProperty()
created_on = ndb.DateTimeProperty(auto_now_add=True)
project_name = ndb.StringProperty(default='New Project')
project_image = ndb.BlobKeyProperty()
project_image_url = ndb.StringProperty(default='')
project_created_by = ndb.StringProperty(default='')
project_category = ndb.StringProperty(default='')
project_location = ndb.StringProperty(default='')
project_link = ndb.StringProperty(default='')
project_duration = ndb.StringProperty(default='')
@property
def project_url_name(self):
if not self.project_url_name_unique_key:
return None
return self.project_url_name_unique_key.id().rsplit(':', 1)[1]
# class methods (ordered by alphabet)
@classmethod
def create(cls, primary_contact_first_name, primary_contact_surname, primary_contact_email, project_name, project_status):
with client.context():
project = cls( primary_contact_first_name=primary_contact_first_name, primary_contact_surname=primary_contact_surname, primary_contact_email=primary_contact_email,
project_name=project_name, project_status=project_status)
project.put()
if project:
return True, project, "Success" # succes, project, message
else:
return False, project, "Project not created"
api的代码如下。
@login_required
def create_project(**params):
if request.method == "POST":
user = params["user"]
details = user.to_dict()
success, project, message = Project.create(
user = ndb.Key('User', user.get_id)
primary_contact_first_name=details.get('first_name'),
primary_contact_surname=details.get('last_name'),
primary_contact_email=details.get('email_address'),
project_name='New Project',
project_status=0
)
if success:
return make_response(jsonify({"Message" : message, "Project" : project.to_dict() }))
else:
return abort(403, description=message)
这是现在我的代码中出现的错误
File "/home/lenny/Desktop/flask_gae/utils/decorators.py", line 64, in wrapper
return func(**params)
File "/home/lenny/Desktop/flask_gae/handlers/campaigns/main.py", line 33, in create_project
user=ndb.Key('User', user.key),
File "/home/lenny/Desktop/flask_gae/env/lib/python3.7/site-packages/google/cloud/ndb/key.py", line 285, in __new__
client = context_module.get_context().client
File "/home/lenny/Desktop/flask_gae/env/lib/python3.7/site-packages/google/cloud/ndb/context.py", line 71, in get_context
raise exceptions.ContextError()
I 思考问题可能出在create_project()
中。追溯显示:
user=ndb.Key('User', user.key),
这不是the right way to build a key,您需要将密钥ID传递给Key()构造函数,而不是密钥:
user=ndb.Key('User', <user_key_id>),
更新后的代码段显示了朝该方向的尝试。
但是除非我误读了您的代码,user
是从那时的请求参数获得的:
user = params["user"]
这意味着user
可能不是ndb实体(我认为您不能直接将ndb实体作为请求参数传递)。尝试将其显示在日志消息中以进行检查。您可能需要:
获取/创建实际的user
ndb实体并获取其密钥:
user=user.key.id(),