User matching query does not exist - django - django

Question

I have a page which shows the user and their about. And in that, there's a link to update their about. But when I open that link it shows me with this error:
DoesNotExist at /profile/user/update_about/
User matching query does not exist.
And the traceback hightlights this line, which from the profile method in the views:
13. user = User.objects.get(username=unquote(user_name))
However this error does not occur when I load the profile method. It occurs only on the update_profile method in the views.
views.py
from django.shortcuts import render
from django.http import HttpResponseRedirect
from urllib import unquote
from django.contrib.auth.models import User
from models import About
from forms import AboutForm
# Create your views here.
def profile(request, user_name):
user = User.objects.get(username=unquote(user_name))
about = About.objects.get_or_create(user=user)
about = about[0]
return render(request, 'user_profile.html', {
'user':user,
'about_user':about
})
def update_about(request, user_name):
user = User.objects.get(username=unquote(user_name))
if request.method == 'POST':
form = AboutForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/')
else:
about = About.objects.get(user=user)
form = AboutForm(initial={'dob':about.dob})
return render(request, 'update_about.html',{
'form':form
})
urls.py
urlpatterns = patterns('',
# Examples:
url(r'(?P<user_name>[\w#%.]+)/$', 'user_related.views.profile', name='profile'),
url(r'(?P<user_name>[\w#%.]+)/update_about/$', 'user_related.views.update_about', name='update_about'),
What is causing this? Your help will be very much appreciated. Thank you.

Answer 1

You forgot to add the caret sign (^) at the first position of regex. So the first regex matched "update_about/" part of the url.
Fixed code:
url(r'^(?P<user_name>[\w#%.]+)/$', 'user_related.views.profile', name='profile'),
url(r'^(?P<user_name>[\w#%.]+)/update_about/$', 'user_related.views.update_about', name='update_about'),