Working with Ecto

This page is in progress

https://brooklinmyers.medium.com/ecto-with-phoenix-in-4-minutes-9b7c447055c6

Update all tables that contain a field with a chosen value

   def reset_testbeds do
    items = from t in TestBed, where: t.status == "Taken"
    Repo.update_all(items, set: [status: "Available", developer: "None"])
    |> broadcast_change([:testbed, :reset])
  end