Django Class Based Views

From Django 1.3, The concept of class based views has come up. In this way, view functions are replaced by Python objects.
Specific HTTP methods can be determined by separate methods and can be used more like object-based techniques (mixins).

Class Based Views

First, let’s see the difference between the function and method in Python with an example.:

class PrintMe(object):
def __init__(self, astring):
self.l = astring
def print_me(self):
print(self.l)

class PrintMe(object):

def __init__(self, astring):

self.l = astring

def print_me(self):

print(self.l)

Let’s run the method:

p = PrintMe("po")
p.print_me()

1 2	p = PrintMe("po") p.print_me()

Function

def print_me(l):
print l

1 2	def print_me(l): print l

Execute function:

print_me("po")

1	print_me("po")

Output;

For an HTTP GET on Django , a view function looks like this:

from django.http import HttpResponse
def any_view(request):
if request.method == 'GET':
# kodlarınız
return HttpResponse('any responce')

from django.http import HttpResponse

def any_view(request):

if request.method == 'GET':

# kodlarınız

return HttpResponse('any responce')

While in CBV (class-based views) :

from django.views.generic import View
class AnyView(View):
def get(self, request):
# kodlarınız
return HttpResponse('any responce')

from django.views.generic import View

class AnyView(View):

def get(self, request):

# kodlarınız

return HttpResponse('any responce')

Urls.PY

from django.conf.urls import patterns
from anyapp.views import AnyView
urlpatterns = patterns('',
(r'^any/', AnyView.as_view()),
)

from django.conf.urls import patterns

from anyapp.views import AnyView

urlpatterns = patterns('',

(r'^any/', AnyView.as_view()),

)

Get and post methods in CBV:
On a CBV, the arguments of the Get and POST method are self, request (HttpRequest), and the request argument you specify in Urlconfig.:

from django.views.generic import View
class ViewClass(View):
def get(self, request, arg1, keyword=value):
return method1()
def post(self, request, arg1, keyword=value):
return method2()

from django.views.generic import View

class ViewClass(View):

def get(self, request, arg1, keyword=value):

return method1()

def post(self, request, arg1, keyword=value):

return method2()

Source;

https://docs.djangoproject.com/en/dev/topics/class-based-views/intro/
http://lgiordani.github.io/blog/2013/10/28/digging-up-django-class-based-views-1/
http://programmer.97things.oreilly.com/wiki/index.php/Don’t_Repeat_Yourself

https://bonosindeposito.io/