query set lost when page changes in Django - django

Question

I created a search system for my objects called Property and it filters and search through my objects well in first page but when I change pagination or ordering or changing page all filters gone and it sends all objects to template. is there anyway to fix this?
for example this is my first url after search:
/properties/search?location=&category=flat&look_for=FR
after switching to page 2 I get:
/properties/search?page=2
and the result of my search dissappeard.
my pagination in template:
{% if is_paginated %}
{% if page_obj.has_previous %}
<li>
<a href="?page=1" aria-label="First">
<span aria-hidden="true">First</span>
</a>
</li>
<li>
<a href="?page={{ page_obj.previous_page_number }}" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
{% endif %}
{% for num in page_obj.paginator.page_range %}
{% if page_obj.number == num %}
<li class="active">{{num}}</li>
{% elif num > page_obj.number|add:'-3' and num < page_obj.number|add:'3'%}
<li>{{num}}</li>
{% endif %}
{% endfor %}
{% if page_obj.has_next %}
<li>
<a href="?page={{ page_obj.next_page_number }}" aria-label="Next">
<span aria-hidden="true">»</span></a>
<li>
<a href="?page={{ page_obj.paginator.num_pages }}" aria-label="Last">
<span aria-hidden="true">Last</span></a>
{% endif %}
{%endif%}
views.py
class SearchView(ListView):
model = Property
template_name = 'property/properties-list.html'
context_object_name = 'properties'
ordering = '-pub_date'
paginate_by = 8
def get_context_data(self, *args, **kwargs):
context = super(SearchView, self).get_context_data(*args, **kwargs)
"""somthing"""
return context
def get_paginate_by(self, queryset):
if self.request.GET.get("paginate_by") == "":
return self.paginate_by
return self.request.GET.get("paginate_by", self.paginate_by)
def get_ordering(self):
ordering = super(SearchView, self).get_ordering()
if self.request.GET.get('sort_by') == "Name":
return ('-title')
elif self.request.GET.get('sort_by') == "Price":
return ('-price')
elif self.request.GET.get('sort_by') == "Date":
return ('-pub_date')
else:
return self.ordering
def get_queryset(self):
location = self.request.GET.get('location')
category = self.request.GET.get('category')
look_for = self.request.GET.get('look_for')
if location or category or look_for:
if look_for == '' and category == '':
queryset = Property.objects.filter(Q(city__icontains = location))
elif look_for == '':
queryset = Property.objects.filter(Q(city__icontains = location) & Q(category__slug = category))
elif category == '':
queryset = Property.objects.filter(Q(city__icontains = location) & Q(property_status = look_for))
else:
queryset = Property.objects.filter(Q(city__icontains = location) & Q(category__slug = category) & Q(property_status = look_for))
else:
queryset = Property.objects.all()
return queryset
url.py
path("properties/search", views.SearchView.as_view(), name = "Search")
Obviously I'm new to Django, if you have any recommendation to improve my code, I would be happy to hear it.

Answer 1

<a href="?page={{ page_obj.next_page_number }}" aria-label="Next">
Remember that HTTP is stateless. It doesn't automatically keep track of sorting or filtering options. Here you only include page in the query parameters, so this is the only option that is known when the user clicks the "next" button. One solution to maintain filtering or sort order is to include the appropriate query parameters in the href of all <a> tags.