feat(ex/db/detour): set :status in changeset when :state changes`

lib/skate/detours/db/detour.ex

@@ -24,7 +24,20 @@ defmodule Skate.Detours.Db.Detour do
   def changeset(detour, attrs) do
     detour
     |> cast(attrs, [:state, :activated_at])
-    |> validate_required([:state])
+    |> add_status()
+    |> validate_required([:state, :status])
     |> foreign_key_constraint(:author_id)
   end
+
+  defp add_status(changeset) do
+    case fetch_change(changeset, :state) do
+      {:ok, state} ->
+        # Once this column is added for all detours, `categorize_detour` logic
+        # should be moved here and should not be needed anymore
+        put_change(changeset, :status, Skate.Detours.Detours.categorize_detour(%{state: state}))
+
+      _ ->
+        changeset
+    end
+  end
 end