Consolidate usage of 'artist names' string

lib/music_library/records/record.ex

@@ -30,6 +30,10 @@ defmodule MusicLibrary.Records.Record do
     timestamps(type: :utc_datetime)
   end
 
+  def artist_names(record) do
+    Enum.map_join(record.artists, ", ", fn artist -> artist.name end)
+  end
+
   def formats, do: @formats
   def types, do: @types
 

lib/music_library_web/components/form_component.ex

@@ -3,7 +3,7 @@ defmodule MusicLibraryWeb.FormComponent do
 
   import MusicLibraryWeb.RecordComponents, only: [format_label: 1, type_label: 1]
   alias MusicLibrary.Records
-  alias MusicLibrary.Records.Cover
+  alias MusicLibrary.Records.{Cover, Record}
 
   @impl true
   def mount(socket) do
@@ -18,7 +18,7 @@ defmodule MusicLibraryWeb.FormComponent do
     <div>
       <header>
         <h1 class="text-sm font-medium leading-6 text-zinc-700 dark:text-zinc-400">
-          {Enum.map(@record.artists, & &1.name) |> Enum.join(", ")}
+          {Record.artist_names(@record)}
         </h1>
         <h2 class="text-base font-medium leading-6 text-zinc-700 dark:text-zinc-400">
           {@record.title}

lib/music_library_web/live/collection_live/show.ex

@@ -116,11 +116,9 @@ defmodule MusicLibraryWeb.CollectionLive.Show do
   end
 
   def page_title(:show, record) do
-    artist_names = Enum.map(record.artists, & &1.name)
-
     Enum.join(
       [
-        Enum.join(artist_names, ", "),
+        Records.Record.artist_names(record),
         "-",
         record.title,
         "·",
@@ -133,11 +131,9 @@ defmodule MusicLibraryWeb.CollectionLive.Show do
   end
 
   def page_title(action, record) do
-    artist_names = Enum.map(record.artists, & &1.name)
-
     Enum.join(
       [
-        Enum.join(artist_names, ", "),
+        Records.Record.artist_names(record),
         "-",
         record.title,
         "·",

lib/music_library_web/live/wishlist_live/show.ex

@@ -124,11 +124,9 @@ defmodule MusicLibraryWeb.WishlistLive.Show do
   end
 
   def page_title(action, record) do
-    artist_names = Enum.map(record.artists, & &1.name)
-
     Enum.join(
       [
-        Enum.join(artist_names, ", "),
+        Records.Record.artist_names(record),
         "-",
         record.title,
         "·",