Django Call Class based view from another class based view

Question

i am trying to call a class based view and i am able to do it, but for some reason i am not getting the context of the new class that i am calling

class ShowAppsView(LoginRequiredMixin, CurrentUserIdMixin, TemplateView):
    template_name = "accounts/thing.html"



    @method_decorator(csrf_exempt)
    def dispatch(self, *args, **kwargs):
        return super(ShowAppsView, self).dispatch(*args, **kwargs)

    def get(self, request, username, **kwargs):
        u = get_object_or_404(User, pk=self.current_user_id(request))

        if u.username == username:
            cities_list=City.objects.filter(user_id__exact=self.current_user_id(request)).order_by('-kms')
            allcategories = Category.objects.all()
            allcities = City.objects.all()
            rating_list = Rating.objects.filter(user=u)
            totalMiles = 0
            for city in cities_list:
                totalMiles = totalMiles + city.kms

        return self.render_to_response({'totalMiles': totalMiles , 'cities_list':cities_list,'rating_list':rating_list,'allcities' : allcities, 'allcategories':allcategories})


class ManageAppView(LoginRequiredMixin, CheckTokenMixin, CurrentUserIdMixin,TemplateView):
    template_name = "accounts/thing.html"

    def compute_context(self, request, username):
        #some logic here                        
        if u.username == username:
            if request.GET.get('action') == 'delete':
                #some logic here and then:
                ShowAppsView.as_view()(request,username)

What am i doing wrong guys?

Asked By: psychok7

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Source

Answer 1

Things get more complicated when you start using multiple inheritance in python so you could easily be trampling your context with that from an inherited mixin.

You don’t quite say which context you are getting and which one you want (you’re not defining a new context), so it’s difficult to completely diagnose, but try rearranging the order of your mixins;

class ShowAppsView(LoginRequiredMixin, CurrentUserIdMixin, TemplateView):

this implies that LoginRequiredMixin will be the first class to inherit from, and so it will take precedence over the others if it has the attribute you’re looking for – if it hasn’t then python will look in CurrentUserIdMixin and so on.

If you want to be really sure that you get the context that you’re after, you could add an override like

def get_context(self, request):
    super(<my desired context mixin>), self).get_context(request)

to ensure that the context you get is the one from the mixin that you want.

* Edit *
I don’t know where you’ve found compute_context but it’s not a django attribute so will only get called from ShowAppsView.get() and never in ManageAppView.

Answered By: danodonovan

Answer 2

Instead of

ShowAppsView.as_view()(self.request)

I had to do this

return ShowAppsView.as_view()(self.request)

Answered By: psychok7

Django Call Class based view from another class based view

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