index.html

<form method = "POST" action="resultat.html"> {% csrf_token %}
    {{ form }}
    
    <input type = "submit" value = "Submit"> 

</form>

resultat.html

<h1>Resultat</h1>
<!--{{form}}-->

urls.py

from . import views
from django.urls import path

urlpatterns = [
    path('', views.index, name='index'),
    path('detail', views.detail, name='detail'),
    path('resultat', views.form_data, name='resultat')
]

views.py

from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect
from appli.forms import Formulaire
from appli.models import Exercice
from django.db.models import Q


# Create your views here.

def index(request):
    context = {} 
    context['form'] = Formulaire()
     

    return render( request, 'appli/index.html', context) 


'''def form_data(request):
    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        form = Formulaire(request.POST)
        # check whether it's valid:
        if form.is_valid():
            # process the data in form.cleaned_data as required
            # ...
            # redirect to a new URL:
            return HttpResponseRedirect('resultat.html')

    # if a GET (or any other method) we'll create a blank form
    else:
        form = Formulaire()

    return render(request, 'resultat.html', {'form': form})'''

def form_data(request):
    return render(request, 'appli/resultat.html', {})




def detail(request):
    exercices_deb=Exercice.objects.filter(Q(difficulte_exercice=1) | Q(difficulte_exercice=2))
    exercices_int=Exercice.objects.filter(Q(difficulte_exercice=2) | Q(difficulte_exercice=3))
    exercices_av=Exercice.objects.filter(Q(difficulte_exercice=3) | Q(difficulte_exercice=4))
    context = {'exercices_deb':exercices_deb, 'exercices_int':exercices_int, 'exercices_av':exercices_av}

    return render(request, 'appli/detail.html', context)