From 60c6142688b3f575b20e387310fd1a569b119d2a Mon Sep 17 00:00:00 2001
From: Mike Colagrosso <colagrosso@users.noreply.github.com>
Date: Tue, 16 Jan 2024 20:46:26 -0700
Subject: [PATCH] Delete unreferenced artists after updating artwork

Also clean up ArtistAlternateSpellings at the same time we delete an artist
---
 lib/Artist.php  | 20 ++++++++++++++++++++
 lib/Artwork.php |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/lib/Artist.php b/lib/Artist.php
index d8ab6fa3..8bcd709a 100644
--- a/lib/Artist.php
+++ b/lib/Artist.php
@@ -141,5 +141,25 @@ class Artist extends PropertiesBase{
 			from Artists
 			where ArtistId = ?
 		', [$this->ArtistId]);
+		Db::Query('
+			DELETE
+			from ArtistAlternateSpellings
+			where ArtistId = ?
+		', [$this->ArtistId]);
+	}
+
+	public static function DeleteUnreferencedArtists(): void{
+		Db::Query('
+			DELETE
+			from Artists
+			where ArtistId NOT IN
+				(SELECT DISTINCT ArtistId FROM Artworks)
+		');
+		Db::Query('
+			DELETE
+			from ArtistAlternateSpellings
+			where ArtistId NOT IN
+				(SELECT DISTINCT ArtistId FROM Artworks)
+		');
 	}
 }
diff --git a/lib/Artwork.php b/lib/Artwork.php
index c6c6183e..e8e80c11 100644
--- a/lib/Artwork.php
+++ b/lib/Artwork.php
@@ -731,6 +731,8 @@ class Artwork extends PropertiesBase{
 				$this->ArtworkId]
 		);
 
+		Artist::DeleteUnreferencedArtists();
+
 		Db::Query('
 			DELETE FROM ArtworkTags
 			WHERE