My product table is id type price location 1 chips $3 aisle3

I have a question with adding the products in groups. There is a quantity field(nonmodel) where the user can enter the quantity While adding a new product if the user enters: type: soda quantity: 3

Then there 3 records should be created in product model with type= soda like the following. id type
2 soda
3 soda
4 soda

If user enters location: aisle4 quantity: 2 Then id location
5 ailse4 6 ailse4

Can you tell me how to pass the nonmodel field 'quantity' to the rails(model or controller) and how use it to add the products in groups as mentioned above? or should I create a column called quantity in my product table? Will the history be updated too for all these new records with after_create filter which I already have ? Is there any good tutorial or book which shows how to pass such nonmodel html/javascript fields from view to rails and then back to the view? Any help will be greatly appreciated. Thanks