[Django] FBV and CBV

FBV (Function Based Views)

views.py

def login(request):
  if request.method == “GET”:
    ...

  if request.method == “POST”:
    ...

urls.py

urlpatterns = [
 path(‘login/’, views.login),
]

CBV (Class Based Views)

views.py

class Login(View):
  def get(self,request):
      ...

  def post(self,request):
      ...

urls.py

urlpatterns = [
 path(‘login/’, views.Login.as_view()),
]

FBV in comparison with CBV

1. FBV use functions that we define ourselves, and use the request to judge different HTTP methods.
2. CBV use classes that we define ourselves, and the class need to inherit View related object from Django. We can use functions in class to seperate HTTP methods.
3. FBV could use in the case that the views is special, and almost not duplicated.
4. CBV could avoid duplicate code block, and be more readable if the inheritance are not complicated.