From 53280392b46ee76a4ad9bdfe37d61957e16856da Mon Sep 17 00:00:00 2001
From: Tetrakern <26898880+Tetrakern@users.noreply.github.com>
Date: Tue, 29 Oct 2024 00:48:29 +0100
Subject: [PATCH] Save co-author IDs as strings

This is better for queries and makes otherwise no difference.
---
 includes/functions/_setup-meta-fields.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/includes/functions/_setup-meta-fields.php b/includes/functions/_setup-meta-fields.php
index fde4d794..6b0c7e09 100644
--- a/includes/functions/_setup-meta-fields.php
+++ b/includes/functions/_setup-meta-fields.php
@@ -2300,7 +2300,9 @@ function fictioneer_save_story_metaboxes( $post_id ) {
     $co_authors = array_filter( $co_authors, function( $user_id ) {
       return get_userdata( $user_id ) !== false;
     });
-    $fields['fictioneer_story_co_authors'] = array_unique( $co_authors );
+    $co_authors = array_unique( $co_authors );
+
+    $fields['fictioneer_story_co_authors'] = array_map( 'strval', $co_authors );
   }
 
   // Sticky flag
@@ -2912,7 +2914,9 @@ function fictioneer_save_chapter_metaboxes( $post_id ) {
     $co_authors = array_filter( $co_authors, function( $user_id ) {
       return get_userdata( $user_id ) !== false;
     });
-    $fields['fictioneer_chapter_co_authors'] = array_unique( $co_authors );
+    $co_authors = array_unique( $co_authors );
+
+    $fields['fictioneer_chapter_co_authors'] = array_map( 'strval', $co_authors );
   }
 
   // Warning