How to add this to Django?

Question

Django

Increase item by pressing +/-

Answer 1

Create a quantity field in the order model:

class Order(models.Model):
    count = models.PositiveIntegerField(validators=[MinValueValidator(1)], default=1)

In html, pull up jquery and beautifully increment the order when you click on the plus.
There are plenty of templates on google for this.
https://www.jqueryscript.net/form/Number-Input-Spi...
Send it all in a POST request to the server and process the order.