Paginating the results of a Django forms POST request

Question

I\'m using Django Forms to do a filtered/faceted search via POST, and I would like to Django\'s paginator class to organize the results. How do I preserve the original requ

Answer 1

I did this in my web application with get parameters Maybe i can help you :

Views.py

class HomeView(ListView):
model = Hotel
template_name = 'index.html'
paginate_by = 10  # if pagination is desired

def get_queryset(self):
   qs = super().get_queryset()
   kwargs = {}
   if 'title' in self.request.GET:
       title = self.request.GET.get('title')
       if title != '':
           kwargs['title__icontains'] = title
   if 'category' in self.request.GET:
       category = self.request.GET.get('category')
       if category:
           kwargs['category_id'] = category
   if 'size' in self.request.GET:
       size = self.request.GET.get('size')
       if size:
           kwargs['size_id'] = size
   if 'service' in self.request.GET:
       service = self.request.GET.get('service')
       if service:
           kwargs['service_id'] = service
   if 'ownership' in self.request.GET:
       ownership = self.request.GET.get('ownership')
       if ownership:
           kwargs['ownership_id'] = ownership
   qs = qs.filter(**kwargs)
   return qs

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    form_init = {}
    form = SearchForm()
    if self.request.GET.items():
        try:
            parameters = self.request.GET.items()
        except KeyError:
            parameters = {}
        for key, value in parameters:
            for field in form.fields:
                if key == field:
                    form_init[key] = value
        form.initial = form_init
    if 'title' in self.request.GET:
       title = self.request.GET.get('title')
       if title != '':
           context.update({
            'title': title
           })
    if 'category' in self.request.GET:
       category = self.request.GET.get('category')
       context.update({
        'category': category
       })
    if 'size' in self.request.GET:
       size = self.request.GET.get('size')
       context.update({
           'size': size
      })
    if 'service' in self.request.GET:
       service = self.request.GET.get('service')
       context.update({
           'service': service
      })
    if 'ownership' in self.request.GET:
       ownership = self.request.GET.get('ownership')
       context.update({
          'ownership': ownership
       })
    context.update({
        'search_form': form
    })
    return context

Pagination file html

<div class="row">
  {% if is_paginated %}
  <nav aria-label="...">
    <ul class="pagination">
      {% if page_obj.has_previous %}
        <li class="page-item"><a class="page-link" href="?category={{category}}&size={{size}}&service={{service}}&ownership={{ownership}}&page={{ page_obj.previous_page_number }}">Previous</a></li>
      {% else %}
        <li class="page-item disabled"><span class="page-link">Previous</span></li>
      {% endif %}
      <span class="page-current">
               Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
           </span>
      {% if page_obj.has_next %}
        <li class="page-item"><a class="page-link" href="?category={{category}}&size={{size}}&service={{service}}&ownership={{ownership}}&page={{ page_obj.next_page_number }}">Next</a></li>
      {% else %}
        <li class="page-item disabled"><span class="page-link">Next</span></li>
      {% endif %}
    </ul>
  </nav>
 {% endif %}
</div>