How to implement add to cart for multiple items?

Question

Ruby on Rails

Guys, help me out.
Tell me how to implement adding goods to the cart for, say, three standard models of the Order, OrderItem, Product type.
In general, how does adding to the cart usually work? For each product, a form is generated with a field for specifying the quantity of the product (quantity), a hidden field for the id, and, in fact, submit.
The task is to add all products to the cart at once, for which the value of the quantity field is not equal to zero. That is, adding not each product separately, but the whole heap with a single button.
I tried through nested_attributes, but either the skis do not go, or I ...

Answer 1

Use inheritance