like save correctly in to the database,but I don’t know how to get and show user favorite count.
my error now: AttributeError: 'list' object has no attribute 'objects'.
I think the problem with my code is mostly in this parts:models.py count_favorites_by_session() and views.py statuse_of_favorite_list()
favorite.py

class favoriteProduct:
    def __init__(self,request) -> None:
        self.session=request.session
        favorite_product=self.session.get('favorite_product')
        if not favorite_product:
            favorite_product=self.session['favorite_product']=[]
        self.favorite_product=favorite_product
        self.count=Favorite.count_favorites_by_session()
    def __iter__(self):
        favorite_product=self.favorite_product.copy()
        for item in favorite_product:
            yield item
    def add_to_favorite_product(self,productId):
        productId=int(productId)
        if productId  not in self.favorite_product:
            self.favorite_product.append(productId)
        self.count=Favorite.count_favorites_by_session()
        self.session.modified=True

models.py

class Favorite(models.Model):    product=models.ForeignKey(Product,on_delete=models.CASCADE,related_name='favorite_product',verbose_name='product')
    favorite_user=models.ForeignKey(CustomUser, on_delete=models.CASCADE,related_name='favorite_user1',verbose_name='user favorite')
    register_date=models.DateTimeField(auto_now_add=True,verbose_name='register date')
    def __str__(self) -> str:
        return f"{self.product} - {self.favorite_user}"
    class Meta:
        verbose_name='favorite'
        verbose_name_plural='favorites'
    def count_favorites_by_session(self):
        request=RequestMiddleware(get_response=None)
        request=request.thread_local.current_reques
        session=request.session
        favorite_product_ids =session.get('favorite_product')
        return self.objects.filter(product__id__in=favorite_product_ids).count()

views.py

class ShowFavoriteListView(View):
    def get(self,request,*args,**kwargs):
        favorite_list=favoriteProduct(request)
        context={
            'favorite_list':favorite_list,
        }
        return render(request,'csf_app/partials/create_favorites.html',context)
    
def statuse_of_favorite_list(request):
    favoriteList=favoriteProduct(request)
    return HttpResponse(favoriteList.count)

def add_to_favorite(request):
    productId=request.GET.get('productId')
    product=Product.objects.get(id=productId)
    flag=Favorite.objects.filter(
        Q(favorite_user_id=request.user.id) &
        Q(product_id=productId)).exists()
    if(not flag):
        Favorite.objects.create(product=product,favorite_user=request.user,)
        return HttpResponse('added to favorite lists')
    return HttpResponse('it was in favorite')
class UserFavoriteView(View):
    def get(self,request,*args,**kwargs): user_favorite_products=Favorite.objects.filter(Q(favorite_user_id=request.user.id))
        return render(request,'csf_app/user_favorite.html',{'user_favorite_products':user_favorite_products})

urls.py

urlpatterns = [ 
    path('add_to_favorite/',views.add_to_favorite,name='add_to_favorite'),
path('user_favorite_list/',views.UserFavoriteView.as_view(),name='user_favorite_list'),  
path('statuse_of_favorite_list/',views.statuse_of_favorite_list,name='statuse_of_favorite_list'),     
]

myscript.js

statuse_of_favorite_list();
function statuse_of_favorite_list(){
    $.ajax({
        type:"GET",
        url:"/csf/statuse_of_favorite_list/",
        success: function(res){
            $('#favorite_count_icon').show();
            $('#favorite_count').text(res);}
    });
}
function addToFavorite(productId){
    $.ajax({
        type:"GET",
        url:"/csf/add_to_favorite/",
        data:{
            productId: productId,},
        success: function(res){
            alert(res)
            statuse_of_favorite_list();}
    });
}

createfavorites.html

...{% block content %}
    <div id="favorite_list">
        {% render_partial 'csf:user_favorite_list' %}
    </div>...
**produc_box.html**
....<button type="button" onclick="addToFavorite({{product.id}})">
          <i class="fa fa-heart-broken"></i>
          <span class="fake-svg-icon fake-svg-icon--wishlist-16"></span>
        </button>....