我正在构建一个Django应用程序,通过LinkedIn api下载一些数据并将其存储到MongoDB。我正在使用python-linkedin库。一个函数获取组post并将这些post作为dict对象返回。
测试时,我收到以下类型错误:
======================================================================
ERROR: test_get_or_create_post (providers.linkedin.tests.LinkedInTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/josephfusaro/explorro/explorro/app/providers/linkedin/tests.py", line 36, in test_get_or_create_post
api.get_or_create_post(a1)
File "/Users/josephfusaro/explorro/explorro/app/providers/linkedin/api.py", line 134, in get_or_create_post
existing_post = Post.objects.get(post_id=post['id'])
TypeError: string indices must be integers, not str
下面是返回的dict对象的一个示例,它表示LinkedIn组post和创建post的用户。
{u'creator':
{u'firstName': u'Joe',
u'headline': u'General Manager',
u'id': u'Wr4g5xEN4I',
u'lastName': u'P.',
u'pictureUrl': u'http://m.c.lnkd.licdn.com/mpr/mprx/0_x...xJkwu'},
u'id': u'g-60415-S-5913079393848621697',
u'title': u'How do you use LinkedIn groups for business?',
u'type': {u'code': u'standard'}
}
我正试图将这些对象存储在MongoDB中。以下是documents.py文件(大多数):
# documents.py
from mongoengine import (
Document,
ReferenceField,
StringField,
IntField,
DateTimeField,
URLField,
DictField,
ListField, DoesNotExist, NotUniqueError)
from abc import ABCMeta, abstractmethod
class LinkedInUser(Document):
linkedin_user_id = StringField(required=True)
screen_name = StringField()
first_name = StringField()
last_name = StringField()
description = StringField()
url = URLField()
profile_image_url = URLField()
class Post(Document):
linkedin_user = ReferenceField(LinkedInUser,required=True)
post_id = StringField(required=True)
title = StringField()
下面是一个函数,它接受post(预期为dict)并将其保存为MongoDB
# api.py
def get_or_create_post(post):
try:
existing_post = Post.objects.get(post_id=post['id'])
return existing_post
except DoesNotExist:
try:
new_post = Post()
new_post.linkedin_user = get_or_create_linkedin_user(
post['creator']
)
new_post.post_id = post['id']
new_post.title = post['title']
new_post.save()
return new_post
except NotUniqueError:
return get_or_create_post(post)
注意,我在运行Django测试时得到了错误
# tests.py
from django.test import TestCase
from .models import OauthToken
from accounts.models import EmailUser
from . import api
class LinkedInTestCase(TestCase):
'''To run these tests: python app/manage.py test linkedin'''
def setUp(self):
cust_user = EmailUser.objects.create()
oauth = OauthToken.objects.create(user=cust_user)
oauth.access_token = "AQUaXm...klsdfQ"
oauth.save()
def test_get_or_create_post(self):
oauth = OauthToken.objects.get(user=0)
auth = api.get_linkedin_api(access_token=oauth.access_token)
posts = api.get_linkedin_group_digest(auth) # create generator object and set to 'posts'
a = next(posts) # get item from generator object above
a1 = ["values"][0] # Get first post from dict
api.get_or_create_post(a1)
这是Django ORM+MongoDB的限制,还是我做错了其他事情?
问题是
检查输出
你可能得写得像
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