我正在尝试使用django syndication创建自定义Django RSS Feed（实际上使用django wagtail feeds）。我有一个错误，我认为我已经确定它来自一个NoneType对象，该对象由Result :
Table1Id item Dimensions Description
1 test1 10*11*12 Test element1 desc 1
2 test2 13*14*15 Test element2 desc 1
内的get_object()函数返回。
`/ feed / basic / Chups /的AttributeError 'NoneType'对象没有'startswith'属性
例外位置：/Users/technical/.virtualenvs/wagtest4-plnzODoN/lib/python3.6/site-packages/django/contrib/syndication/views.py in add_domain，第19行
该函数作为syndication/views.py的一部分调用，如下所示：
class Feed()该函数在第36行调用但由于def get_object(self, request, *args, **kwargs):
return None
返回get_object()对象而失败。
我对django wagtail feed的自定义以下列方式扩展None：
Feed from django.contrib.syndication.views import Feed
from django.utils.feedgenerator import (
SyndicationFeed, rfc3339_date, Rss201rev2Feed
)
from .models import RSSFeedsSettings, RSSFeed
class BasicFeed(Feed):
# FEED TYPE
feed_type = Rss201rev2Feed
def get_object(self, request, category):
return category
try:
feed_app_settings = RSSFeedsSettings.objects.get(feed_category_name="Flex")
print(feed_app_settings)
feed_app_label = feed_app_settings.feed_app_label
feed_model_name = feed_app_settings.feed_model_name
feed_category_name = feed_app_settings.feed_category_name
use_feed_image = feed_app_settings.feed_image_in_content
except: # pragma: no cover
feed_app_settings = None
try:
feed_model = apps.get_model(app_label=feed_app_label,
model_name=feed_model_name)
except: # pragma: no cover
feed_model = None
# The RSS information that gets shown at the top of the feed.
if feed_app_settings is not None:
title = feed_app_settings.feed_title
link = feed_app_settings.feed_link
description = feed_app_settings.feed_description
author_email = feed_app_settings.feed_author_email
author_link = feed_app_settings.feed_author_link
item_description_field = feed_app_settings.feed_item_description_field
item_content_field = feed_app_settings.feed_item_content_field
def items(self, obj):
url_category = obj
categories = ContentType(app_label="blog", model="blogcategory")
category_id = categories.get_object_for_this_type(name=url_category).id
return feed_model.objects.filter(categories=category_id).order_by('-date').live()
def item_pubdate(self, item):
return datetime.combine(item.date, time())
def item_link(self, item):
return item.full_url
def item_author_name(self, item):
pass
包含此内容，请求似乎正常运行。
urls.py
任何人都可以告诉我为什么会这样吗？我错过了关于这个预期功能的一些事情。谢谢！