Re: Reverse for 'modification' with no arguments not found issue

lire.html

...

  <button onclick="location.href='{% url 'modification' req.id %}'" type="button">Editer la<br />requête</button>
...

urls.py

path('edit/<int:id>', views.view_modif, name='modification'),

error :

NoReverseMatch at /edit/1

Reverse for 'modification' with no arguments not found. 1 pattern(s) tried: ['edit/(?P<id>[0-9]+)$']

Request Method:	GET
Request URL:	http://127.0.0.1:8000/edit/1
Django Version:	2.0
Exception Type:	NoReverseMatch
Exception Value:	Reverse for 'modification' with no arguments not found. 1 pattern(s) tried: ['edit/(?P<id>[0-9]+)$']
Exception Location:	/usr/lib/python3.7/site-packages/django/urls/resolvers.py in _reverse_with_prefix, line 632
Python Executable:	/usr/bin/python

The error is saying you have no arguments to the {% url %} tag. Make sure that req.id is actually resolving to an integer value. 

Templates are fun when they mask missing values like that. You already have it displayed earlier in the template. Comment out the {% url %} tag and see if a number is displayed in your template.

-James

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