migration to create inbox and root containers for all shows and episodes

and add all nodes to these containers

Author: electronicbites

priv/repo/migrations/20241217180012_add_node_containers_to_existing_records.exs

@@ -0,0 +1,83 @@
+defmodule Radiator.Repo.Migrations.AddNodeContainersToExistingRecords do
+  use Ecto.Migration
+
+  import Ecto.Query, warn: false
+  alias Radiator.Repo
+  alias Radiator.Outline.{Node, NodeContainer}
+  alias Radiator.Podcast.{Episode, Show}
+
+  def up do
+    # Disable automatic timestamps for this migration
+    Application.put_env(:radiator, :disable_timestamps, true)
+
+    # Add node containers to existing shows
+    Repo.all(Show)
+    |> Enum.each(fn show ->
+      # Create containers
+      {:ok, inbox} = %NodeContainer{} |> Repo.insert()
+      {:ok, outline} = %NodeContainer{} |> Repo.insert()
+
+      # Update show with containers
+      show
+      |> Ecto.Changeset.change(%{
+        inbox_node_container_id: inbox.id,
+        outline_node_container_id: outline.id
+      })
+      |> Repo.update!()
+
+      # Update all nodes belonging to this show
+      from(n in Node, where: n.show_id == ^show.id)
+      |> Repo.update_all(set: [outline_node_container_id: outline.id])
+    end)
+
+    # Add node containers to existing episodes
+    Repo.all(Episode)
+    |> Enum.each(fn episode ->
+      # Create containers
+      {:ok, inbox} = %NodeContainer{} |> Repo.insert()
+      {:ok, outline} = %NodeContainer{} |> Repo.insert()
+
+      # Update episode with containers
+      episode
+      |> Ecto.Changeset.change(%{
+        inbox_node_container_id: inbox.id,
+        outline_node_container_id: outline.id
+      })
+      |> Repo.update!()
+
+      # Update all nodes belonging to this episode
+      from(n in Node, where: n.episode_id == ^episode.id)
+      |> Repo.update_all(set: [outline_node_container_id: outline.id])
+    end)
+
+    # Re-enable automatic timestamps
+    Application.delete_env(:radiator, :disable_timestamps)
+  end
+
+  def down do
+    # In down migration, we'll remove the container associations but keep the containers
+    # to prevent data loss
+
+    # Remove container associations from shows
+    from(s in Show)
+    |> Repo.update_all(
+      set: [
+        inbox_node_container_id: nil,
+        outline_node_container_id: nil
+      ]
+    )
+
+    # Remove container associations from episodes
+    from(e in Episode)
+    |> Repo.update_all(
+      set: [
+        inbox_node_container_id: nil,
+        outline_node_container_id: nil
+      ]
+    )
+
+    # Remove container associations from nodes
+    from(n in Node)
+    |> Repo.update_all(set: [outline_node_container_id: nil])
+  end
+end