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 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 created?
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
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