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impress/app/models/closet_list_observer.rb

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616 B
Ruby

class ClosetListObserver < ActionController::Caching::Sweeper
include FragmentExpiration
def after_update(list)
expire_all_items_trade_hangers(list) if list.trading_changed?
end
def before_destroy(list)
# Nullify all the child records explicitly, which will in turn trigger
# their update callbacks and expire their items' caches. This occurs in the
# same transaction as the list's destruction.
list.hangers.each { |h| h.list_id = nil; h.save! }
end
def expire_all_items_trade_hangers(list)
list.hangers.each { |h| ClosetHangerObserver.expire_item_trade_hangers(h) }
end
end