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module ActionCable
module Channel
module Callbacks
extend ActiveSupport::Concern
included do
class_attribute :on_subscribe_callbacks, :on_unsubscribe_callbacks, instance_reader: false
self.on_subscribe_callbacks = []
self.on_unsubscribe_callbacks = []
end
module ClassMethods
# Name methods that should be called when the channel is subscribed to.
# (These methods should be private, so they're not callable by the user).
def on_subscribe(*methods)
self.on_subscribe_callbacks += methods
end
# Name methods that should be called when the channel is unsubscribed from.
# (These methods should be private, so they're not callable by the user).
def on_unsubscribe(*methods)
self.on_unsubscribe_callbacks += methods
end
end
end
end
end
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