Module: ActionCable::Channel::Callbacks

Extended by:: ActiveSupport::Concern

Includes:: ActiveSupport::Callbacks

Included in:: Base

Defined in:: actioncable/lib/action_cable/channel/callbacks.rb

Overview

Action Cable Channel Callbacks

Action Cable Channel provides callback hooks that are invoked during the life cycle of a channel:

before_subscribe
after_subscribe (aliased as on_subscribe)
before_unsubscribe
after_unsubscribe (aliased as on_unsubscribe)

Example

class ChatChannel < ApplicationCable::Channel
  after_subscribe :send_welcome_message, unless: :subscription_rejected?
  after_subscribe :track_subscription

  private
    def send_welcome_message
      broadcast_to(...)
    end

    def track_subscription
      # ...
    end
end

Defined Under Namespace

Modules: ClassMethods

Constant Summary

Constants included from ActiveSupport::Callbacks

ActiveSupport::Callbacks::CALLBACK_FILTER_TYPES

Method Summary

Methods included from ActiveSupport::Concern

append_features, class_methods, extended, included, prepend_features, prepended

Methods included from ActiveSupport::Callbacks