Django ListView customising queryset

Question

Hopefully this should be a simple one to help me with.

I have a page with a dropdown menu containing three items:

    &l         


        

Answer 1

To solve this problem I just modified the pagination HTML, to accommodate both the get request from the form and the page number in the url string, like so:

    
        {% if page_obj.has_previous %}
            previous
        {% endif %}
        
            Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
        
        {% if page_obj.has_next %}
            next
        {% endif %}
    

The {{ input }} here is a string containing the option submitted via the form, e.g. 'Cats' or 'Worms'.

To be able to pass this into the template, I modified the get_context_data method of the class based view as such:

class Browse(generic.ListView):
    template_name = 'app/browse.html'
    paginate_by = 25

    # Modifying the get_context_data method

    def get_context_data(self, **kwargs):
        context = super(Browse, self).get_context_data(**kwargs)
        q = self.request.GET.get("browse")
        context['input'] = q
        return context

    def get_queryset(self):
        queryset = Cats.objects.all()
        if self.request.GET.get("browse"):
            selection = self.request.GET.get("browse")
            if selection == "Cats":
                queryset = Cats.objects.all()
            elif selection == "Dogs":
                queryset = Dogs.objects.all()
            elif selection == "Worms":
                queryset = Worms.objects.all()
            else:
                queryset = Cats.objects.all()
        return queryset

That was it, the url string now reads something like:

/browse/?browse=Cats&page=3

So there it is, pagination now works alongside the get method of the form.