Pyramid decorator chaining
In my pyramid application I am trying to implement authorization by decorating the view function.
When I use the config.scan() function none of the views are added, however if I explicitly add them using config.add_view() everything works fine.
I have two file one which defines all the view functions (views.py)
from pyramid.view import view_config
from pyramid.response import Response
from functools import wraps
def authorized(func): #decorator difnition
@wraps(func)
def new_func(request):
if(request.cookies.get('user')): # authorization
return func(request)
else:
return Response('not authirised')
return new_func
@view_config(route_name='hello') # view function being decorated
@authorized
def privileged_action(request):
return Response('Hello %(name)s!' % request.matchdict)
And another file to create the server (serve.py) which imports views.py
from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from views import privileged_action
if __name__ == '__main__':
config = Configurator()
config.add_route('hello', '/hello/{name}')
# config.add_view(privileged_action, route_name='hello') # This works
config.scan() # This doesn't work
app = config.make_wsgi_app()
server = make_server('0.0.0.0', 8080, app)
server.serve_forever()
This gives 404 not found error if I access using 'http://localhost:8080/hello/a'
Why does this not work?
Is there any way to make this work?
Your code with the decorators looks fine.
The documentation for Configurator.scan() states for its first argument:
The package argument should be a Python package or module object (or a dotted Python name which refers to such a package or module). If package is None, the package of the caller is used.
So make sure you are doing config.scan(views) , to get your web app dynamically adding your views.
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