Add the update action for the Book FormComponent.

lib/decentralised_book_index/metadata/author_role.ex

@@ -47,12 +47,12 @@ defmodule DecentralisedBookIndex.Metadata.AuthorRole do
     update :update do
       primary? true
       accept [:order, :role]
-      argument :author_id, :uuid
-
+      argument :author_id, :uuid, allow_nil?: true
       require_atomic? false
 
       change fn changeset, _ ->
-        author_id = changeset.arguments.author_id
+        author_id =
+          Map.get(changeset.arguments, :author_id, nil)
 
         if author_id != nil do
           {:ok, author} = DecentralisedBookIndex.Metadata.get_author_by_id(author_id)

lib/decentralised_book_index/metadata/book.ex

@@ -13,7 +13,7 @@ defmodule DecentralisedBookIndex.Metadata.Book do
   end
 
   actions do
-    defaults [:read, :update, :destroy]
+    defaults [:read, :destroy]
 
     create :create do
       primary? true
@@ -112,6 +112,29 @@ defmodule DecentralisedBookIndex.Metadata.Book do
       pagination offset?: true, default_limit: 10
     end
 
+    update :update do
+      primary? true
+      require_atomic? false
+      accept [:title, :description, :format, :language, :page_count, :published, :publisher_id, :cover_image_url, :book_editions_registry_id]
+      argument :bids, {:array, :map}
+      argument :author_roles, {:array, :map}
+
+      change fn changeset, _ ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :book_editions_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} = DecentralisedBookIndex.Metadata.create_book_editions_registry()
+
+          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
+      change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
+    end
+
     update :assign_cover_image do
       accept [:cover_image_url]
     end