Trying to access part of code by get request and receiving this error
NoReverseMatch: Reverse for 'homepage' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: [] looked around for help and i think its that am missing some arguments.
here is request am using in my test
req = self.client.get('/password/reset/')
and the code it leads to is as:
class PasswordResetEmailView(FormView):
template_name = 'temp/password_reset.html'
form_class = PasswordResetForm
success_url = 'password_reset_ok'
def get(self, request, *args, **kwargs):
form = self.get_form(self.form_class)
return self.render_to_response(self.get_context_data(form=form))
any guidance ?
You ask specifically about "determining which arguments are missing", but should be irrelevant to your error.
Your error message states that it can't find any URL patterns matching the name "homepage", before attempting any argument matching. Therefore no URLs exist named "homepage" in your setup. If it was an argument mismatch, you'd see a list of named URLs in the error such as "tried X urls."
Either define a URL named home in your URLConf url(r'^home/$', 'home_view', name="homepage") or find the location that is calling reverse('homepage') and remove it. You will find this information in your traceback.
Related
I an trying to make url router in Django which supports following URLs :
http://localhost:8000/location/configuration
http://localhost:8000/location/d3d710fcfc1391b0a8182239881b8bf7/configuration
url(r'^locations/configuration$',
location_config.as_view(), name="location-config"),
url(r'^locations/(?P<location_key>[\w]+)/configuration$',
location_config.as_view(), name="location-config-uri")
Whenever I tried to hit http://localhost:8000/location/configuration, it picked up the second URL routing format instead of picking up first one.
Error:
TypeError at /locations/configuration/ get() missing 1 required
positional argument: 'location_key'
Can anyone help me here what goes wrong with the url routing format?
Nope, it does pick the first pattern which has no arguments, however you're using the same view in both patterns and location_config view has required argument location_key which is not provided when first pattern matches the URL. That's what error message is saying.
So write another view which will not require location_key argument or alter this view definition: add default to the parameter
def location_config(request, location_key=None):
....
now it is not a "required positional argument".
django Will look for a pk when you are using a detail view by default. you have to override it by using get_object()
in your case
def get_object(self, queryset=None):
location_key = self.kwargs.get('location_key')
obj = Model.objects.get(id=location_key)
return obj
I am trying to redirect users to a create-profile form after signup.Since I don't know how to use dynamic url for LOGIN_REDIRECT_URL.I tried this little trick of linking it to a static view then finally to a dynamic view using redirect.It gives the error Reverse for 'add_profile' with arguments '()' and keyword arguments '{'username': u'badguy'}' not found. 0 pattern(s) tried: [] (with 'badguy' truly the username of the just signed-up user').From the error,it is clearly passing the username to the view.My codes are:
settings.py
LOGIN_REDIRECT_URL = '/prof-change/gdyu734648dgey83y37gyyeyu8g/'
urls.py
url(r'^prof-change/gdyu734648dgey83y37gyyeyu8g/',views.login_redir,name='login_redir'),
url(r'^create-profile/(?P<username>\w+)/$',views.add_profile,name='create-profile'),
views.py
def login_redir(request):
user=get_object_or_404(User,username=request.user.username)
username=user.username
return redirect('add_profile',username=username)
def add_profile(request,username):
userman=User.objects.get(username=username)
........
........
When you reverse urls (including when you use a url name with the redirect shortcut), you should use the name of the url pattern, not the view. The url pattern has name='create-profile', so use that.
redirect('create-profile', username=username)
What is wrong with my approach?
When I post new data, I want it to return back to the page with the input fileds empty. But it gives me this error
NoReverseMatch at /school/new-school/
Reverse for 'new-school' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []
This is my model. Please note, reverse_lazy was imported
class SchoolList(models.Model):
name = models.CharField(max_length=15, null=False)
def __str__(self):
return '%s' % (self.name)
def get_absolute_url(self):
return reverse_lazy('new-school')
This is my url.py
url(r'^school-list/$', SchoolListtView.as_view(), name='school-list'),
url(r'^new-school/$', CreateSchoolListView.as_view(), name='new-school'),
url(r'^school(?P<pk>\d+)/update/$', SchoolListUpdate.as_view(), name='update-school')
This is my view for create.
class CreateSchoolListView(CreateView):
template_name = 'school\create_form.html'
model = SchoolList
fields = ['name']
This is how I specified the urls in the template.
Create New School
View all Schools
When the page is displayed, I can click the links and it will go to the correct pages. But when I post a data, the it throws the above error. I have been on this for hours and read many of the answers online. It seems mine is a unique case.
Try adding namespace to get_absolute_url().
def get_absolute_url(self):
return reverse_lazy('school:new-school')
Make sure you import your app's urls in your project's urls with namespace like:
url(r'^school/', include('school.urls', namespace="school"))
to use namespace in your templates like this:{% url 'school:new-school' %}
Or remove namespace:
url(r'^school/', include('school.urls'))
to use url without namespace in template:{% url 'new-school' %}
Using get_absolute_url would be a bad approach in this case, since it's an instance method, designed to get url for single model instance.
If you want to add method to model, you should use something like this:
#classmethod
def get_create_url(cls):
return reverse_lazy('school:new-school')
I am trying to redirect to another from a Django view, like so
url = reverse("enterOTP",args=(), kwargs={"status": status})
def enterOTP(request, *args, **kwargs):
form = OTP()
return render(request,"enterotp.html", {"form":form, "status":status})
And this is my URLconf
url(r'enterotp/(?P<status>[-\w]+)/$', 'FlowSimulator.views.enterOTP', name = "enterOTP")
I keep getting the NoReverseMatch error. What am I doing wrong?
Your URLconf might not have been loaded at the time you try to reverse the URL. Try reverse_lazy instead
Does anyone know how to make a reverse url lookup on a url with an include parameter? For example I have the following url:
url(r'^photos/', include('photos.urls'), name="photos"),
And in my view i want to access it as follows
def photos_redirect(request, path):
return HttpResponsePermanentRedirect(reverse('photos') + path)
But it get the following error:
Reverse for 'photos' with arguments '()' and keyword arguments '{}' not found.
You have to reverse to a single urlpattern. The photos URL pattern is including all the urlpatterns in photos.urls, so you have to choose which single URL you are wanting to direct to.