Django Rest Framework:无法克服奇怪的错误 [英] Django Rest Framework: Can't get over strange error

问题描述

尝试一个简单的请求:

urls.py

from django.conf.urls import url
from django.urls import include, path
from rest_framework import routers
from django.http import HttpResponse
from rest_framework.urlpatterns import format_suffix_patterns
from .public_views import NavigationBar


router = routers.DefaultRouter()
router.register(r'navbar', NavigationBar, basename="NavigationBar")


urlpatterns = [
    path('', include(router.urls))

]

urlpatterns = format_suffix_patterns(urlpatterns)

public_views.py

from django.shortcuts import render
from rest_framework.views import APIView
from rest_framework.permissions import AllowAny
from rest_framework.throttling import UserRateThrottle
from rest_framework.decorators import api_view, throttle_classes
from . view_utils import *


class OncePerDayUserThrottle(UserRateThrottle):
    rate = '1/day'


class NavigationBar(APIView):
    """
    obtain up to date navigation bar (or side menu navigation) hierarchy.
    """
    permission_classes = ([AllowAny])

    def get(self, request, format=None):
        """
        get user addresses
        """
        return Response("this is a good response")

    def get_extra_actions(cls):
        return []

当我API调用/v1/navbar 或/v1/navbar/端点时(我确实有主要的 urls.py 线索)所有/v1/流量都传输到另一个专用 urls.py )，我收到以下错误消息:

When I API call the /v1/navbar or /v1/navbar/ endpoints (I do have my main urls.py lead all /v1/ traffic to another dedicated urls.py), I am getting the following error:

AttributeError at /v1/navbar
type object 'NavigationBar' has no attribute 'get_extra_actions'
Request Method: GET
Request URL:    http://web/v1/navbar
Django Version: 2.1
Exception Type: AttributeError
Exception Value:    
type object 'NavigationBar' has no attribute 'get_extra_actions'
Exception Location: /usr/local/lib/python3.6/site-packages/rest_framework/routers.py in get_routes, line 200
Python Executable:  /usr/local/bin/uwsgi
Python Version: 3.6.8
Python Path:    
['.',
 '',
 '/usr/local/lib/python36.zip',
 '/usr/local/lib/python3.6',
 '/usr/local/lib/python3.6/lib-dynload',
 '/usr/local/lib/python3.6/site-packages']
Server time:    Tue, 2 Jul 2019 17:12:27 +0000

任何指针，我将不胜感激.另外，我无法理解为什么错误消息中包含请求URL:http://web/v1/navbar 指示，当 web 不属于我的URL时使用. web 来自哪里???我只是使用/v1/navbar/击中端点.

I would appreciate any pointers. Also, I fail to understand why the error message includes a Request URL: http://web/v1/navbar indication when web is not part of the URL I'm using. Where is web coming from??? I just use /v1/navbar/ to hit the endpoint.

推荐答案

此处有两处错误.首先，路由器用于视图集，而不是简单视图.其次，对于基于类的视图，您需要通过urlconf中的 as_view()方法来调用它.因此，摆脱掉路由器的东西，然后做:

There are two things wrong here. First, routers are for viewsets, not simple views. Secondly, with a class based view you need to call it via its as_view() method in the urlconf. So get rid of that router stuff and just do:

urlpatterns = [
    path(r'navbar', NavigationBar.as_view(), name="NavigationBar")
]

注意，现在您不使用路由器，根本不需要该 get_extra_actions 方法.

Note, now you're not using a router, you don't need that get_extra_actions method at all.

这篇关于Django Rest Framework:无法克服奇怪的错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！