Validation and test on printer & print price association
Create association b/n printer and prices
print_price factory
Q: How do I associate params from previous view?

Printers have ability to click 'add new price tier' from their view, but I can't figure out how dynamically associate that printer.id, as a hidden field in the print_price_controller.
Feature: view prices on printer page
Nest print_price resources for printer association
Print price styling and partial
Style price button