dkubb

require 'memoist'

# Usage:
#
# customers = Customer.preload(Customer.orders.line_items.item)
#
# customers.each do |customer|
#   customer.orders.each do |order|
#     order.line_items.each do |line_item|
#       line_item.item  # yay, no more N+1, only 4 queries executed !