In my application i have the following models:
Item - has_and_belongs_to_many :orders
Order - has_and_belongs_to_many :items
This is a basic setup for a small shopping app, I can successfully
add/remove/edit a list of items to one or more orders, but now from the
administration i need to be able to perform a search like: "show orders
having (at least) item x and item y and item z (or more)"
Basically, i need to use AND conditions for items belonging to orders,
something like Order.find(:all, :conditions => "items.id = 2 AND
items.id = 5 AND ...", :include => [:items]) .
Obviously the query above doesn't work, but I can't figure out how to do
Thanks in advance