How can I use decorators with function-based views in Django?

How can I use decorators with function-based views in Django?

You can use decorators to modify the behavior of your function-based views. For example, you can use the @login_required decorator to restrict access to authenticated users.

Can you show me an example of a custom decorator?

Sure! Here's a simple custom decorator that logs the request method:

from functools import wraps
from django.http import HttpResponse

def log_request_method(view_func):
    @wraps(view_func)
    def _wrapped_view(request, *args, **kwargs):
        print(f'Request method: {request.method}')
        return view_func(request, *args, **kwargs)
    return _wrapped_view

How would I apply this decorator to a view?

You can apply it like this:

from django.shortcuts import render

@log_request_method
def my_view(request):
    return render(request, 'my_template.html')

What if I want to pass arguments to my decorator?

You can create a decorator factory that takes arguments. Here's an example:

def my_decorator(arg):
    def decorator(view_func):
        @wraps(view_func)
        def _wrapped_view(request, *args, **kwargs):
            print(arg)
            return view_func(request, *args, **kwargs)
        return _wrapped_view
    return decorator