// models.py
class Product(models.Model):
    title = models.CharField(max_length=225, unique=True)
    slug = models.SlugField(max_length=225, unique=True, null=True)

// admin.py
class ProductAdmin(admin.ModelAdmin):
    prepopulated_fields = {'slug': ('title',)}

// views.py
class productDetail(generic.DetailView):
    model = Detail
    template_name = 'detail.html'

// urls.py
    path('product/<slug:slug>/', views.productDetail.as_view(), name='productDetail'),