so i have the following situation
company has_many products
products has many parts
i can do company.products .count and get back the product count
what i'd like to know is if there is a more elegant way to get the
number of parts for a given company outside of iterating through each
product, counting its parts and then summing that number.
the solution i have now works. i was just wondering if there was a more
elegant way of going about it.