Is there a way to filter multiple class objects in views.py and connect to each other?

I have a Django project where I want to make 3 menus that can be accessed by clicking the select button in each

main_menu(like mainfood) >> menu(pastas) >> items of pastas(bluh bluh)

*main_menu is accessed from the homepage*

I have created 3 classes in models.py called MainMenu, Menu, Item

class MainMenu(models.Model):
    title = models.CharField(max_length=100)
    main_slug = models.SlugField(max_length=50,unique=True)
    created = models.DateTimeField("Date created", default=timezone.now)
    def __str__(self):
        return self.title
    

class Menu(models.Model):
    title = models.CharField(max_length=100)
    slug = models.SlugField(max_length=50,unique=True)
    created = models.DateTimeField("Date created", default=timezone.now)
    main_menus = models.ForeignKey(MainMenu,default="",verbose_name="Menus",on_delete=models.SET_DEFAULT, null=True)

    def __str__(self):
        return f"{self.title}||{self.main_menus}"    
    class Meta:
        ordering = ['-created']


class Item(models.Model):
    title = models.CharField(max_length=100)
    price = models.CharField(max_length=12)
    description = models.TextField(blank=True)
    created = models.DateTimeField("Date created", default=timezone.now)
    menus = models.ForeignKey(Menu,default="",verbose_name="Menus",on_delete=models.SET_DEFAULT)

    def __str__(self):
        return f"{self.title}||{self.menus}"
    
    class Meta:
        ordering = ['-created']

and I have filtered objects in views.py

def menus(request,main_slug):
    matching_menus = Menu.objects.filter(main_menus__main_slug=main_slug).all()
    return render(
        request=request,
        template_name='Menu.html',
        context={"objects": matching_menus}
        )

def items(request,slug):
    matching_items = Item.objects.filter(menus__slug=slug).all()
    return render(
        request=request,
        template_name='Item.html',
        context={"objects": matching_items}
        )

and the urls.py :

urlpatterns = [
...
    path('<slug:main_slug>', views.menus),
    path('<str:slug>', views.items),
]

it kinda WORKS but only menu is filtered correctly.

I can go from MainMenu to Menu and the Menus are filtered correctly,

but I CANNOT access the items in the Menus. when I click a menu like "pastas" it loads up a blank menu html and doesn't give any errors.

tried to connect three menus but ended up connecting only two.

It's because it's always matching the url for the menus. In your example, the string "pastas" can be matched both as a slug and as a string. Since the url for the menus is listed first, that is the one that is selected by Django.

To fix it, use different urls for the different pages, for example:

urlpatterns = [
    ...
    path('main_menu/<slug:main_slug>', views.menus),
    path('menu/<str:slug>', views.items),
]