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sweatpantsninja/OrderItem.rb

Last active December 11, 2015 22:19
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OrderItem.rb
class OrderItem < ActiveRecord::Base
belongs_to :item
after_update :adjust_inventory, :if => lambda {
(size_changed? || item_id_changed?) && !returned?
}
def adjust_inventory
if item_id_changed?
Item.find(item_id_was).increment_stock(size_was)
item.reload.decrement_stock(size)
else
item.increment_stock(size_was)
item.decrement_stock(size)
end
end
end
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