You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: controller.rb
    path of file: ./repos/entangled/lib/entangled
    
    the code of the file until where you have to start completion: require 'tubesock'
require 'tubesock/hijack'

module Entangled
  module Controller
    include Tubesock::Hijack
    
    module InstanceMethods
      include Entangled::Helpers

      private

      # The plural name of the resource, inferred from the
      # controller's name. For example, if it's the TacosController,
      # the resources_name will be "tacos". This is used to
      # infer the instance variable name for collections assigned
      # in the controller action
      def resources_name
        controller_name
      end

      # The singular name of the resource, inferred from the
      # resources_name. This is used to infer the instance
      # variable name for a single record assigned in the controller
      # action
      def resource_name
        resources_name.singularize
      end

      # The model for this controller. E.g. Taco for a TacosController
      def model
        controller_name.classify.constantize
      end

      # Grabs @tacos
      def collection
        instance_variable_get(:"@#{resources_name}")
      end

      # Grabs @taco
      def member
        instance_variable_get(:"@#{resource_name}")
      end

      # Infer channel from current path
      def channel
        request.path
      end

      # Close the connection to the DB so as to
      # not exceed the pool size. Otherwise, too many
      # connections will be leaked and the pool
      # will be exceeded
      def close_db_connection
        if ActiveRecord::Base.connection
          ActiveRecord::Base.connection.close
        end
      end

      # Broadcast events to every connected client
      def broadcast(&block)
        # Use hijack to handle sockets
        hijack do |tubesock|
          begin
            # Assuming restful controllers, the behavior of
            # this method has to change depending on the action
            # it's being used in
            case action_name

            # If the controller action is 'index', a collection
            # of records should be broadcast
            when 'index'
              execute_action(tubesock, block)

              # The following code will run if an instance
              # variable with the plural resource name has been
              # assigned in yield. For example, if a
              # TacosController's index action looked something
              # like this:

              # def index
              #   broadcast do
              #     @tacos = Taco.all
              #   end
              # end

              # ...then @tacos will be broadcast to all connected
              # clients. The variable name, in this example,
              # has to be "@tacos"
              if collection
                redis_thread = Thread.new do
                  redis.subscribe channel do |on|
                    # Broadcast messages to all connected clients
                    on.message do |channel, message|
                      tubesock.send_data message
                 
    
      def broadcast(&block)
        # Use hijack to handle sockets
        hijack do |tubesock|
          begin
            # Assuming restful controllers, the behavior of
            # this method has to change depending on the action
            # it's being used in
            case action_name

            # If the controller action is 'index', a collection
            # of records should be broadcast
            when 'index'
              execute_action(tubesock, block)

              # The following code will run if an instance
              # variable with the plural resource name has been
              # assigned in yield. For example, if a
              # TacosController's index action looked something
              # like this:

              # def index
              #   broadcast do
              #     @tacos = Taco.all
              #   end
              # end

              # ...then @tacos will be broadcast to all connected
              # clients. The variable name, in this example,
              # has to be "@tacos"
              if collection
                redis_thread = Thread.new do
                  redis.subscribe channel do |on|
                    # Broadcast messages to all connected clients
                    on.message do |channel, message|
                      tubesock.send_data message
                    end

                    # Send message to whoever just subscribed
                    tubesock.send_data({
                      resources: collection
                    }.to_json)

                    close_db_connection
                  end
                end

                # When client disconnects, kill the thread
                tubesock.onclose do
                  redis_thread.kill
                end
              end

            # If the controller's action name is 'show', a single record
            # should be broadcast
            when 'show'
              execute_action(tubesock, block)

              # The following code will run if an instance variable
              # with the singular resource name has been assigned in
              # yield. For example, if a TacosController's show action
              # looked something like this:

              # def show
              #   broadcast do
              #     @taco = Taco.find(params[:id])
              #   end
              # end

              # ...then @taco will be broadcast to all connected clients.
              # The variable name, in this example, has to be "@taco"
              if member
                redis_thread = Thread.new do
                  redis.subscribe channel do |on|
                    # Broadcast messages to all connected clients
                    on.message do |channel, message|
                      tubesock.send_data message
                    end

                    # Send message to whoever just subscribed
                    tubesock.send_data({
                      resource: member
                    }.to_json)

                    close_db_connection
                  end
                end

                # When client disconnects, kill the thread
                tubesock.onclose do
                  redis_thread.kill
                end
              end

            # If the controller's action name is 'create', a record should be
            # created. Before yielding, the params hash has to be prepared
            # with attributes sent to the socket. The actual publishing
            # happens in the model's callback
            when 'create'
              tubesock.onmessage do |m|
                set_resource_params(m)
                execute_action(tubesock, block)

                # Send resource that was just created back to client. The resource
                # on the client will be overridden with this one. This is important
                # so that the id, created_at and updated_at and possibly other
                # attributes arrive on the client
                if member
                  tubesock.send_data({
                    resource: member
                  }.to_json)
                end

                close_db_connection
              end

            # If the controller's action name is 'update', a record should be
            # updated. Before yielding, the params hash has to be prepared
            # with attributes sent to the socket
            when 'update'
              tubesock.onmessage do |m|
                set_resource_params(m)
                execute_action(tubesock, block)

                # Send resource that was just updated back to client. The resource
                # on the client will be overridden with this one. This is important
                # so that the new updated_at and possibly other attributes arrive
                # on the client
                if member
                  tubesock.send_data({
                    resource: member
                  }.to_json)
                end

                close_db_connection
              end