在Django中使用gmail API

Question

我對Django有點新，需要一些幫助將我的python腳本（身份驗證，構建gmail服務，查詢gmail）轉換爲django應用程序。我正在嘗試使用google django樣本和他們在這裏指定的課程https://developers.google.com/api-client-library/python/guide/django，但感到有點困惑。任何幫助將不勝感激！當我訪問我的索引時，下面的代碼使我通過了認證流程，但是在點擊我的谷歌個人資料後，產生的頁面出現錯誤："ValueError at /app/ 無法分配無：「CredentialsModel.id」不允許空值。「

Traceback: 
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response 
    112.      response = wrapped_callback(request, *callback_args, **callback_kwargs) 
File "/Users/sachinshukla/Desktop/gmail/customer_support/views.py" in index 
    70.  credentials = run(flow, storage, http=http) 
File "/Library/Python/2.7/site-packages/oauth2client/util.py" in positional_wrapper 
    132.  return wrapped(*args, **kwargs) 
File "/Library/Python/2.7/site-packages/oauth2client/old_run.py" in run 
    156. storage.put(credential) 
File "/Library/Python/2.7/site-packages/oauth2client/client.py" in put 
    325.  self.locked_put(credentials) 
File "/Library/Python/2.7/site-packages/oauth2client/django_orm.py" in locked_put 
    126.  entity = self.model_class(**args) 
File "/Library/Python/2.7/site-packages/django/db/models/base.py" in __init__ 
    405.     setattr(self, field.name, rel_obj) 
File "/Library/Python/2.7/site-packages/django/db/models/fields/related.py" in __set__ 
    335.         (instance._meta.object_name, self.field.name)) 

Exception Type: ValueError at /customer_support/ 
Exception Value: Cannot assign None: "CredentialsModel.id" does not allow null values. 

代碼視圖：

CLIENT_SECRETS = os.path.join(os.path.dirname(__file__), '..', 'client_secret.json') 
REDIRECT_URI = 'http://localhost:8080/' 
SCOPES = [ 
'https://www.googleapis.com/auth/gmail.modify', 
] 


def index(request): 
    storage = Storage(CredentialsModel, 'id', request.user.id, 'credential') 
    credentials = storage.get() 

    flow = flow_from_clientsecrets(CLIENT_SECRETS, scope=SCOPES) 
    http = httplib2.Http() 

    if credentials is None or credentials.invalid: 
     credentials = run(flow, storage, http=http) 

    # Authorize the httplib2.Http object with our credentials 
    http = credentials.authorize(http) 

    # Build the Gmail service from discovery 
    gmail_service = build('gmail', 'v1', http=http) 

    # then do something, query threads, messages, etc, 
    and return them to a template - not sure where exactly to put the methods for querying  threads, messages, etc. 

型號：

from django.db import models 

import pickle 
import base64 

from django.contrib import admin 
from django.contrib.auth.models import User 
from django.db import models 

from oauth2client.django_orm import FlowField 
from oauth2client.django_orm import CredentialsField 


class CredentialsModel(models.Model): 
    id = models.ForeignKey(User, primary_key=True) 
    credential = CredentialsField() 


class CredentialsAdmin(admin.ModelAdmin): 
    pass 


admin.site.register(CredentialsModel, CredentialsAdmin) 

Answer 1

1）這部分是完全有問題的：

class CredentialsModel(models.Model): 
    id = models.ForeignKey(User, primary_key=True) 
    credential = CredentialsField() 

如果妳希望與用戶模型1-1關係U可以使用

user = models.OneToOneField(User, primary_key=True) 

2）U必須將此部分單獨到一個新的admin.py文件，以避免將來出現問題。

class CredentialsAdmin(admin.ModelAdmin): 
    pass 


admin.site.register(CredentialsModel, CredentialsAdmin) 

https://docs.djangoproject.com/en/1.6/topics/db/examples/one_to_one/

3）這個問題是從這裏！

storage = Storage(CredentialsModel, 'id', request.user.id, 'credential') 

USER_ID =用戶。

正確的是：

storage = Storage(CredentialsModel, 'id', request.user, 'credential')