Creating a search bar with Django to query a MongoDB database - django

Question

I have a search bar where I want to search for perfumes in a MongoDB database. I tried two ways but it never works.
Here is the HTML template for both:
search_similar.html:
{% extends "todo/base.html" %}
{% block content %}
<div class="recommendations">
<!-- <div class="login-page"> -->
<div class="form">
<form action="{% url 'search_results' %}" method="get">
<input name="q" type="text" placeholder="Perfume name...">
<input type ="submit" value="Find Similar Perfumes" />
</form>
<form class="login-form" action = "/predict" method="POST">
<input type="text" placeholder="perfume name"/> <!-- https://www.youtube.com/watch?v=TRODv6UTXpM&ab_channel=ProgrammingKnowledge -->
<input type ="submit" value="Find Similar Perfumes" />
</form>
</div>
</div>
{% endblock %}
views.py:
import pymongo
import todo.config as config
from django.db.models import Q
username = config.username
password = config.password
...
class SearchResultsView(ListView):
model = Perfume
template_name = 'todo/search_similar_results.html'
def get_queryset(self): # new
query = self.request.GET.get('q')
perfume_list = list(collection.find({'q0.Results.0.Name': {"$regex" : query}}, {'item_name': 1, 'brand': 1, 'gender': 1,
'note': 1, 'tags': 1, 'theme': 1, '_id': 0}))
print("perfume_list: ", perfume_list)
return perfume_list
But perfume_list is hopelessly empty.
But even in MongoDB Atlas, I have problems to search in nested dictionaries. Indeed the query in the image below does not give the result that we can see:
Anexo: urls.py
urls.py:
from django.contrib import admin
from django.urls import path
from todo import views
urlpatterns = [
...
# similar
path('similar', views.search_similar, name='similar'),
path('similar_results', views.SearchResultsView.as_view(), name='search_results')
]