Programming Phoenix 1.4

Persisting Annotations

Now that we have in-memory annotations going across all connected clients through an authenticated user, let’s extend our multimedia context to attach those annotations to videos and users in the database. You’ve seen how we manage schemas and relationships with Ecto so the process will be straightforward. In this case, we’re creating annotations on videos. Each new annotation will belong to both a user and a video.

You can use the phx.gen.schema generator, like this:

$ mix phx.gen.schema Multimedia.Annotation annotations body:text \
at:integer user_id:references:users video_id:references:videos

* creating lib/rumbl/multimedia/annotation.ex
* creating priv/repo/migrations/20180726203443_create_annotations.exs ...