CODEWITHSUNDEEP
djangodjango-testing
Darwin Tech
Darwin Tech

Reputation: 18919

Django Reverse with arguments '()' and keyword arguments '{}' not found

Hi I have an infuriating problem.

I have a url pattern like this:

# mproject/myapp.urls.py

url(r'^project/(?P<project_id>\d+)/$','user_profile.views.EditProject',name='edit_project'),

it works fine in the browser but for testing, when I do this in the shell:

from django.test import Client
from django.core.urlresolvers import reverse

client= Client()
response = client.get(reverse('edit_project'), project_id=4)

I get the dreaded:

NoReverseMatch: Reverse for 'edit_project' with arguments '()' and keyword arguments '{}' not found.

What am I missing here?

Upvotes: 192

Views: 175091

Answers (5)

SebCorbin
SebCorbin

Reputation: 1723

The function resolve_url is also more straightforward

from django.shortcuts import resolve_url

resolve_url('edit_project', project_id=4)

Documentation on this shortcut

Upvotes: 2

serfer2
serfer2

Reputation: 2683

Easiest way is by using kwargs with reverse() function:

from django.test import Client
from django.urls import reverse

url = reverse("edit_project", kwargs={"project_id": 4})
response = Client().get(url)

Upvotes: 5

Srivats Shankar
Srivats Shankar

Reputation: 2574

The solution @miki725 is absolutely correct. Alternatively, if you would like to use the args attribute as opposed to kwargs, then you can simply modify your code as follows:

project_id = 4
reverse('edit_project', args=(project_id,))

An example of this can be found in the documentation. This essentially does the same thing, but the attributes are passed as arguments. Remember that any arguments that are passed need to be assigned a value before being reversed. Just use the correct namespace, which in this case is 'edit_project'.

Upvotes: 26

KRH
KRH

Reputation: 130

This problems gave me great headache when i tried to use reverse for generating activation link and send it via email of course. So i think from tests.py it will be same. The correct way to do this is following:

from django.test import Client
from django.core.urlresolvers import reverse

#app name - name of the app where the url is defined
client= Client()
response = client.get(reverse('app_name:edit_project', project_id=4))

Upvotes: 4

miki725
miki725

Reputation: 27861

You have to specify project_id:

reverse('edit_project', kwargs={'project_id':4})

Doc here

Upvotes: 371

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