How is the view model implemented in Django and what role does it serve?

In Django, the view model is implemented through a class View or functions that handle HTTP requests and return HTTP responses. Views are responsible for data processing logic, interacting with models, and selecting templates for display.

The role of the view is to connect data (models) and the user interface (templates). It takes a request, extracts the necessary data, processes it, and returns a formed response.

Example of a simple function-based view:

from django.http import HttpResponse

def hello_view(request):
    return HttpResponse("Hello, world!")

And an example of a class-based view:

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

class HelloView(View):
    def get(self, request):
        return HttpResponse("Hello, world!")