django {% url %} tag without parameters

Question

I have a url defined as follows:

url(r'^details/(?P<id>\d+)$', DetailView.as_view(), name='detail_view'),

In my templates, I want to be able to get the following url: /details/ from the defined url.

I tried {% url detail_view %}, but I get an error since I am not specifying the id parameter.

I need the url without the ID because I will be appending it using JS.

How can I accomplish this?

What would the purpose be? This URL can't be matched if there is no id parameter, so why would you want to create a link to it? Maybe you're trying to solve another problem and your solution just isn't the right one? — Thomas Orozco
– Thomas Orozco, Commented Aug 29, 2012 at 18:40
I will append the ID using javascript, but I'd like to have the URL as js variable. — AlexBrand
– AlexBrand, Commented Aug 29, 2012 at 18:41
You could always use the reverse with id = -1 (which you wouldn't expect to be an ID anyway) and replace the rightmost -1 with the proper ID when you need it. Seems very hackish to me if you ask me, but always better than defining another URL. — Thomas Orozco
– Thomas Orozco, Commented Aug 29, 2012 at 19:07

ldiqual · Accepted Answer · 2012-08-29 20:00:00Z

6

Just add this line to your urls.py:

url(r'^details/$', DetailView.as_view(), name='detail_view'),

or:

url(r'^details/(?P<id>\d*)$', DetailView.as_view(), name='detail_view'),

(This is a cleaner solution - thanks to Thomas Orozco)

You'll need to specify that id is optional in your view function:

def view(request, id=None):

edited Aug 29, 2012 at 20:00

answered Aug 29, 2012 at 18:41

ldiqual

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4 Comments

Chris Pratt Over a year ago

Note: the two urlpatterns will need to have a unique name, so if you name this one "detail_view", rename your original to something like "detail_view_with_id".

Thomas Orozco Over a year ago

If you're going to modify the view to accept an optional parameter, I think you might as well make the parameter optional: r'^details/(?P<id>\d*)$'.

user1629366 Over a year ago

how do you specify the id parameter in the template {% url detail_view %}

Shayne Over a year ago

Not really a solution for Class Based views :(

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