In a class based view, HTTP methods map to class method names. Below, defined a handler for GET requests with the get method and url called get method. My question is how did the url map to the get method?
url(r'^hello-world/$', MyView.as_view(), name='hello_world'),
class MyView(View):
def get(self, request, *args, **kwargs):
return HttpResponse("Hello, World")
The url doesn't map to the get method, it maps to the view. Its up to the request method to guide django in the right way.
If you're talking in terms of actual code, its the dispatch method on the view.
def dispatch(self, request, *args, **kwargs):
# Try to dispatch to the right method; if a method doesn't exist,
# defer to the error handler. Also defer to the error handler if the
# request method isn't on the approved list.
if request.method.lower() in self.http_method_names:
handler = getattr(self, request.method.lower(), self.http_method_not_allowed)
else:
handler = self.http_method_not_allowed
return handler(request, *args, **kwargs)
Why not have a look at the code.
http://ccbv.co.uk/projects/Django/1.10/django.views.generic.base/View/
You will see the as_view() method (which gets called in your urls.py) has at line 67:
return self.dispatch(request, *args, **kwargs)
The dispatch() method in turn calls get in line 85 (assuming it is a GET request):
if request.method.lower() in self.http_method_names:
handler = getattr(self, request.method.lower(), self.http_method_not_allowed)
