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Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/action_cable_overview.md | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/guides/source/action_cable_overview.md b/guides/source/action_cable_overview.md index b18b3c3046..c24a507b9a 100644 --- a/guides/source/action_cable_overview.md +++ b/guides/source/action_cable_overview.md @@ -178,6 +178,21 @@ class ChatChannel < ApplicationCable::Channel end ``` +If you have a stream that is related to a model, then the broadcasting used +can be generated from the model and channel. The following example would +subscribe to a broadcasting like `comments:Z2lkOi8vVGVzdEFwcC9Qb3N0LzE` + +```ruby +class CommentsChannel < ApplicationCable::Channel + def subscribed + post = Post.find(params[:id]) + stream_for post + end +end +``` + You can then broadcast to this channel using: + `CommentsChannel.broadcast_to(@post, @comment)` + ### Broadcastings A broadcasting is a pub/sub link where anything transmitted by a publisher |