Add the add alias button for Author Show LiveView.

lib/decentralised_book_index_web/live/author_live/edit.ex

@@ -13,14 +13,18 @@ defmodule DecentralisedBookIndexWeb.AuthorLive.Edit do
       current_user={@current_user}
       action={@live_action}
       author={@author}
+      alternative_author_id={@alternative_author_id}
     />
     """
   end
 
   @impl true
-  def mount(_params, _session, socket) do
+  def mount(params, _session, socket) do
+    alternative_author_id = Map.get(params, "alternative_author_id", nil)
+
     {:ok,
      socket
+     |> assign(:alternative_author_id, alternative_author_id)
      |> assign_new(:current_user, fn -> nil end)}
   end
 

lib/decentralised_book_index_web/live/author_live/form_component.ex

@@ -1,6 +1,8 @@
 defmodule DecentralisedBookIndexWeb.AuthorLive.FormComponent do
   use DecentralisedBookIndexWeb, :live_component
 
+  alias DecentralisedBookIndex.Metadata
+
   @impl true
   def render(assigns) do
     ~H"""
@@ -101,7 +103,15 @@ defmodule DecentralisedBookIndexWeb.AuthorLive.FormComponent do
 
   defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
 
-  defp assign_form(%{assigns: %{author: author}} = socket) do
+  defp assign_form(%{assigns: %{author: author, alternative_author_id: alternative_author_id}} = socket) do
+    alias_id =
+      if alternative_author_id == nil do
+        nil
+      else
+        alternative_author = Metadata.get_author_by_id!(alternative_author_id)
+        alternative_author.author_alias_registry_id
+      end
+
     form =
       if author do
         AshPhoenix.Form.for_update(author, :update,
@@ -109,15 +119,26 @@ defmodule DecentralisedBookIndexWeb.AuthorLive.FormComponent do
           actor: socket.assigns.current_user
         )
       else
-        AshPhoenix.Form.for_create(Metadata.Author, :create,
-          as: "author",
-          actor: socket.assigns.current_user
-        )
+        form =
+          AshPhoenix.Form.for_create(Metadata.Author, :create,
+            as: "author",
+            actor: socket.assigns.current_user
+          )
+          |> set_author_alias_registry_id(alias_id)
       end
 
     assign(socket, form: to_form(form))
   end
 
+  defp set_author_alias_registry_id(form, alias_id) do
+    if alias_id != nil do
+      form
+      |> AshPhoenix.Form.update_params(&Map.put(&1, "author_alias_registry_id", alias_id))
+    else
+      form
+    end
+  end
+
   defp patch_url(action, author_id) do
     case action do
       :edit -> ~p"/authors/#{author_id}"

lib/decentralised_book_index_web/live/author_live/show.ex

@@ -11,11 +11,18 @@ defmodule DecentralisedBookIndexWeb.AuthorLive.Show do
 
       <:actions>
         <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
-          <.link patch={~p"/authors/#{@author}/edit"}>
-            <.edit_button>
-              Edit
-            </.edit_button>
-          </.link>
+          <div class="flex flex-row gap-2">
+            <.link patch={~p"/authors/#{@author}/new"}>
+              <.add_button>
+                Alias
+              </.add_button>
+            </.link>
+            <.link patch={~p"/authors/#{@author}/edit"}>
+              <.edit_button>
+                Edit
+              </.edit_button>
+            </.link>
+          </div>
         <% end %>
       </:actions>
     </.header>