How to display quantity in format function?

Question

Django

I have a CategoryProducts model which has fields title , products ... The products field has a relationship in ManyToMany and I need to display in the def __str__ count function.

class CategoryProducts(models.Model):
    class Meta:
        verbose_name_plural = "Продукция"

    title = models.CharField(max_length=255, verbose_name='Название', db_index=True)
    products = models.ManyToManyField(to='Products', related_name="product", db_index=True, blank=True, verbose_name='Продукты')
    
    def __str__(self):
        return '{}, ({})'.format(
            self.title, self.products
        )

Answer 1

def __str__(self):
    return '{}, ({})'.format(self.title, self.products.count())