class httpresponse results in 405 - django

Question

I am new to django and I am trying to understand class views.

In urls.py (main) I have:

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^', include('webapp.urls')),
]

in webapp folder I have:

urls.py (webapp):

from django.conf.urls import url
from webapp.views import Firstapp

urlpatterns = [
    url(r'^whatever$', Firstapp.as_view()),

]

views.py (webapp):

from django.shortcuts import render
from django.views import View
from django.http import HttpResponse

class Firstapp(View):

    def something(self):
        return HttpResponse('Yes it works!')

As I have said, I am trying to use class views and I would appreciate if you could help me understand why class returns 405 error. Thank you. CMD returns 0 problems.

Answer 1

Because you are subclassing View and the only method you define is called something.

View expects you to define a method for each valid http verb. (GET, POST, HEAD etc). Since Firstapp has no such method, View.dispatch will return a response with http status 405 (Method not allowed).

dispatch(request, *args, **kwargs)

The view part of the view – the method that accepts a request argument plus arguments, and returns a HTTP response.

The default implementation will inspect the HTTP method and attempt to delegate to a method that matches the HTTP method; a GET will be delegated to get(), a POST to post(), and so on.

By default, a HEAD request will be delegated to get(). If you need to handle HEAD requests in a different way than GET, you can override the head() method. See Supporting other HTTP methods for an example.

To fix this, change your something method:

def get(self, request):
    return HttpResponse('Yes it works!')