Create Django named URL using template variable?

Question

How do you specify a named URL pattern in Django if you need to pass it a template variable? My template contains the following URL:

# templates/welcome.html
# Link to template that shows all members near member with this uid
<a href="{% url 'show-members-near' %}uid={{ uid }}">Show members near you</a>

My top-level URLconf file contains the following pattern which points to the application-specific url file:

# conf/urls.py
urlpatterns = patterns('',
    ...
    url(r'^members/',            include('apps.members.urls')),
    ...
)

Here is my application-specific url file:

# app/members/url.py
url(r'^near/(?P<uid>\d{1,})/$',
    'show_members',
    {'template': 'show_members.html'},
    name='show-members-near'),

This is the error I get:

NoReverseMatch at /personal_profile/welcome/
Reverse for 'show-members-near' with arguments '()' and keyword arguments '{}' not found.  1 pattern(s) tried: ['members/near/(?P<uid>\\d{1})/$']

I tried to insert a keyword argument like this but it didn't work:

<a href="{% url 'show-members-near' uid={{ uid }} %}">Show members near you</a>

After doing some research, everything I read seemed to indicate that the keyword argument should be passed the way I did it up above. What I'm trying to do is the equivalent of the following which does work:

<a href="/members/near/{{ uid }}/">See who's here</a>

How do I specify a keyword argument? I didn't see anything that addresses this situation in the Django docs (although I might have missed it).

Thanks!

ekrah · Accepted Answer · 2014-12-16 15:27:13Z

4

You'd just pass the uid in as a keyword. You can find it documented here. So, your url call would look like the following:

<a href="{% url 'show-members-near' uid=uid %}">Show members near you</a>

answered Dec 16, 2014 at 15:27

ekrah

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Comments

Daniel Roseman · Accepted Answer · 2014-12-16 15:25:03Z

1

This case is, of course, explicitly supported and documented. You're missing the fact that everything inside a template tag is evaluated. You can just pass the uid in:

{% url 'show-members-near' uid=uid %}

answered Dec 16, 2014 at 15:25

Daniel Roseman

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