ruby on rails - How can I cleanly broadcast to multiple channels at once with ActionCable? -

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i have code:

actioncable.server.broadcast "posts_#{self.post_id}", { object: some_object }

i'd send same payload multiple broadcastings. obvious way pass array of broadcastings:

actioncable.server.broadcast ["posts_#{self.post_id}", "all_posts"], \      { object: some_object }

but seems treat entire array being identifier:

[actioncable] broadcasting ["posts_30453", "all_posts"]: ...

and neither broadcasting recieves message.

it seems there should cleaner way calling actioncable.server.broadcast multiple times. there?

i build tiny helper gem (multicable) this. adds broadcast_multiple method actioncable::server:

> actioncable.server.broadcast_multiple ["broadcasting1", "broadcasting2"], { payload: "whatever" } [actioncable] broadcasting broadcasting1: {:payload=>"whatever"} [actioncable] broadcasting broadcasting2: {:payload=>"whatever"}

either install gem (gem 'multicable') or throw tiny source somewhere in project:

actioncable::server::base.class_eval   def broadcast_multiple(broadcastings, message, coder: activesupport::json)     broadcastings.each |broadcasting|       broadcast(broadcasting, message, coder: coder)     end    end  end

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