Capturing objects in Django Url

Question

Suppose I have this model:

Class animals(models.Model):
   name = models.CharField(max_length = 20)

and I make 3 objects of it, say ob1, ob2, ob3 with ob1.name = cat, ob2.name = dog, ob3.name = cow

Now if I have a url like this www.domain.com/cator www.domain.com/dog, How to capture /cat or /dogfrom the url and check against the names of objects of class animal?

I am trying to implement a view function that takes a parameter from the url, eg: object.name, and execute according to that object.

Any help is appreciated.

alecxe · Accepted Answer · 2013-08-18 12:27:24Z

1

Use named groups.

It’s possible to use named regular-expression groups to capture URL bits and pass them as keyword arguments to a view.

urls.py:

from django.conf.urls import patterns, url

urlpatterns = patterns('',
    url(r'^(?P<name>\w+)/$', 'my_view'),)

views.py:

def my_view(request, name=None):
    # get a model instance
    animal = animals.objects.get(name=name)

Hope that helps.

answered Aug 18, 2013 at 12:27

alecxe

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3 Comments

H H H Over a year ago

Thanks. But is there a way to detect objects from urls? im trying something like this in urls.py, url(animal.objects.value_list('name'), include('animalapp.urls'). I want to match the /cat or /dog from url and match it with animal.objects.value_list('name') list. Is this possible?

Ben Over a year ago

@HHH how does this answer not provide what you're looking for?

twil Over a year ago

Generally catch all pattern like this url(r'^(?P<name>\w+)/$', 'my_view') is bad idea. If it is possible change it to something like url(r'^animal/(?P<name>\w+)/$', 'my_view'). Otherwise if you must have it /cat, /cow, etc. you may have to move part of your url routing logic in my_view(request, name) which also is bad idea

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