Question

I am new to Django and have started working on a mature Django project.

I want to add a new page to the user account screens, and link to it. But I am getting a NoReverseMatch error.

To /users/urls.py I added:

url(r'^panel/history$',
    'theproject.users.views.history',
    name='account_history'
),

…which is consistent with the line above it:

url(r'^panel$',
    'theproject.users.views.control_panel',
    name='account_panel'
),

To /users/views.py I added:

@login_required
def history(request):
    return render_to_response('users/ourbrand_history.html', {},
    context_instance=RequestContext(request))

…which is consistent with the line above it:

@login_required
def control_panel(request):
    return render_to_response('users/ourbrand_panel.html', {},
    context_instance=RequestContext(request))

To /templates/users/ourbrand_panel.html I added:

<a href="{% url account_history %}">History</a>

…which is consistent with the line above it:

<a href="{% url account_panel %}">Home</a>

Now when I load /panel I get a TemplateSyntaxError: NoReverseMatch.

Reverse for 'account_history' with arguments '()' and keyword arguments '{}' not found.

UPDATE: As a test, I removed my link in the template — and /panel loads fine. If I then delete /users/urls.py and /users/views.py /panel still loads. I have deleted all cookies, history etc. Do I have to run a command at the terminal (like rake in ruby) to commit changes to urls.py? Or should changes ‘just work’?

Answer 1

Answering my own question (based on help provided here)…

Since the server is production, changes to urls.py do not have any effect until the server is restarted. Currently I do not have su access so cannot apachectl restart but it appears this will resolve the issue.