Hi BenoƮt,

Thanks for the suggestion. It's tracked in
https://code.djangoproject.com/ticket/15695. This ticket hasn't seen much
activity, but I've heard this feature request several times.

I don't see much harm in adding the ResolverMatch as an attribute of the
request. ResolverMatch is already a public API [1]. Overall I'm +0 on the
idea.

[1]
https://docs.djangoproject.com/en/1.4/topics/http/urls/#django.core.urlresolvers.ResolverMatch

-- 
Aymeric.

2012/9/25 Benoit Bryon <benoit.br...@novapost.fr>

> Hi,
>
> Here is a feature request : as a developer, I'd like to know the current
> URL name, app name or namespace (or any information gathered during URL
> resolution) within views, templates... i.e. attached to a request object.
>
> Some use cases:
>
> * display some content only if inside an application
> * set a menu item as active if url_name of current request matches
> url_name of menu link
> * enable a context_processor if only within some application (performance
> tuning).
>
> As far as I know, this feature isn't available currently.
>
> We do have request.path_info. Is it enough? It works, sometimes. But
> that's not a rule. As an example, when URL are localized, request.path_info
> changes. Request.path_info is not a reference a developer should rely on.
> Whereas named URL patterns seems suitable (and even, made for that purpose).
>
> Looking at the code, I'm supposing such a feature could be implemented
> quite easily:
>
> * During URL resolution, resolvers return a ResolveMatch object (see
> https://github.com/django/django/blob/e72e22e518a730cd28cd68c9374fa79a45e27a9c/django/core/urlresolvers.py#L222or
> https://github.com/django/django/blob/e72e22e518a730cd28cd68c9374fa79a45e27a9c/django/core/urlresolvers.py#L331)
>
>
> * ResolveMatch instances have attributes such as app_name, url_name...
> That's what I'm looking for. See
> https://github.com/django/django/blob/e72e22e518a730cd28cd68c9374fa79a45e27a9c/django/core/urlresolvers.py#L39
>
> * HTTP handlers are the ones which manage both the URL resolution and the
> request object. They could assign url_name or app_name to request. See
> https://github.com/django/django/blob/e72e22e518a730cd28cd68c9374fa79a45e27a9c/django/core/handlers/base.py#L104
>
> I mean, in
> https://github.com/django/django/blob/e72e22e518a730cd28cd68c9374fa79a45e27a9c/django/core/handlers/base.py#L104,
> we have:
>
> callback, callback_args, callback_kwargs =
>> resolver.resolve(request.path_info)
>>
>
> But if we had something like:
>
> request.resolver_match = resolver.resolve(request.path_info)
>> callback, callback_args, callback_kwargs = request.resolver_match
>>
>
> Then, in templates, we could write something like:
>
> <a href="{% url foo %}" {% if request.resolver_match.url_name == 'foo'
>> %}class="active"{% endif %}>Foo</a>
>>
>
> May I create a ticket for this feature request?
>
> Benoit
>
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-- 
Aymeric.

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