Django - How to redirect back to search page and include query terms?

My pages/views are structured as follows:

index.html => search_results.html => object_details.html,
in which user can make a POST request in object_details.html.

I am trying to redirect back to search_results.html after the POST request, but also keep both query strings.

The url of search results shows as follows, and can have 1 or both queries made:

www.example.com/search-results/?search_post=xxxxx&search_author=xxxxx

The closest I am able to get what I want is using:

return redirect(reverse('search-results') + '?' + 'search_post={{search_post}}'+'&'+'search_author={{search_author}}')

however this would actually show "{{search_post}}" and "{{search_author}}" in each of the 2 fields of the search form in search_results.html,
and would return the url:

www.example.com/search-results/?search_post=%7B%7Bsearch_post%7D&search_author=%7B%7Bsearch_author%7D%7D

Also, my search_results view has the following:

search_post = request.GET.get('search_post')

search_author = request.GET.get('search_author')

How can I do this? Tried using answers for similar questions but yet to figure it out.
Thank you

You just make an error with quotes. You cannot use same syntax as django template. Try using f-string:

return redirect(reverse('search-results') + f"?search_post={search_post}&search_author={search_author}")

Documentation about string: https://peps.python.org/pep-0498/

Ok after your answer, I made a refactoring your view. You can reuse the results for the next filtering at each step of your form processing in fact. And your, I think, your chaining elif was not good and make error.

def search_results(request, *args, **kwargs):

    search_post = request.GET.get('search_post', '')
    search_author = request.GET.get('search_author', '')

    results = Post.objects.all()
    if search_author != '':
        results = results.filter(city__icontains=search_author.strip())
    
    if search_post != '':
        results = results.filter(post__icontains=search_post.strip())

    context = {
        'results': results,
        'search_post': search_post,
        'search_author': search_author,
    }

    return render(request, 'search_results.html', context)

views.py

def index(request):
return render(request, 'index.html')
def search_results(request, *args, **kwargs):
search_post = request.GET.get('search_post')
search_author = request.GET.get('search_author')
if search_author and not search_post:
results = Post.objects.distinct().filter(
(Q(city__icontains=search_author.strip())))
elif search_post and not search_author:
results = Post.objects.distinct().filter(
(Q_post__icontains=search_post.strip()))
elif search_post and search_author:
results = Post.objects.distinct().filter(
(Q_post__icontains=search_post.strip())
)
.filter(
(Q(city__icontains=search_author.strip())
)
)
elif search_post and search_author == None:
results = Post.objects.all().distinct()
return render(request, 'search_results.html', {'results':results, 'search_post':search_post, 'search_author':search_author})
else:
results = Post.objects.all().distinct()
return render(request, 'search_results.html', {'results':results, 'search_post':search_post, 'search_author':search_author})
def post_details(request, pk):
post = Post.objects.get(pk=pk)
post_owner = post.owner
search_post = request.GET.get('search_post')
search_author = request.GET.get('search_author')
if request.user.is_authenticated:
saved = Submission.objects.filter(post=post, owner=request.user)
if saved and request.method == 'POST':
return render (request, 'post_details.html', {'post':post, 'saved':saved})
if request.method == 'POST':
instance = Submission(post=post, post_owner=post_owner,owner=request.user)
instance.save()
return redirect('post-details', pk=post.id)
else:
return render (request, 'post_details.html', {'post':post})
return render (request, 'post_details.html', {'post':post, 'saved':saved})