I am working on a Django project on Google App Engine. I have a URL like:
http://localhost:8080/[company]/projects/project
Note that [company]
is a URL parameter defined in my urls.py like:
(r'(^[a-zA-Z0-9-_.]*)/projects/project/(\d*)', 'projects.views.project_form'),
I want to get the value of [company]
from a middleware where I will set the GAE datastore namespace to the [company]
value.
Is it possible to get the [company]
parameter from the request object passed in the process_request
method of middleware class?
If you are using the process_view
middleware, you will have access to the views arguments and therefore the company value. Have a look at the function's definition:
def process_view(self, request, view_func, view_args, view_kwargs)
...
view_args is a list of positional arguments that will be passed to the view, and view_kwargs is a dictionary of keyword arguments that will be passed to the view.
so you should just be able to grab it from there, something like:
def process_view(self, request, view_func, view_args, view_kwargs):
company = view_kwargs.get('company', None)
Here's some more info from the django book on how the named and unnamed groups in your urls translate to args and kwargs in your view:
http://www.djangobook.com/en/1.0/chapter08/#cn38
particularly
This [named url groups] accomplishes exactly the same thing as the previous example, with one subtle difference: the captured values are passed to view functions as keyword arguments rather than positional arguments.
来源:https://stackoverflow.com/questions/11775441/django-how-to-access-url-regex-parameters-inside-a-middleware-class