From f45c1d0b4032b4a0ed77aa8818937c3a37abde11 Mon Sep 17 00:00:00 2001
From: Antoine <antoine.martinon@deligraph.com>
Date: Mon, 16 Mar 2026 10:17:47 +0100
Subject: [PATCH] FEATURE add get_authors_linked_to_posts function to retrieve
 authors associated with given posts via ACF field for enhanced content
 management

---
 includes/utilities.php | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/includes/utilities.php b/includes/utilities.php
index c0661aa..ec574e7 100644
--- a/includes/utilities.php
+++ b/includes/utilities.php
@@ -361,3 +361,42 @@ function get_carhop_members_by_comity()
 	restore_current_blog();
 	return $members_organised_by_comity;
 }
+
+
+
+/**
+ * Retourne les auteurs (posts du CPT "auteurs") réellement liés
+ * aux posts donnés via le champ ACF "authors".
+ *
+ * @param array $post_ids  Liste d'IDs de posts
+ * @param string $acf_field_name  Nom du champ ACF (par défaut "authors")
+ * @return array|WP_Post[]  Liste de posts "auteurs"
+ */
+function get_authors_linked_to_posts(array $post_ids)
+{
+	if (empty($post_ids)) {
+		return array();
+	}
+	$author_ids = array();
+	foreach ($post_ids as $post_id) {
+		$post_authors = get_field('authors', $post_id);
+		if (empty($post_authors)) continue;
+		
+		foreach ($post_authors as $author) {
+			$author_id = is_object($author) ? $author->ID : (int) $author;
+			if ($author_id) {
+				$author_ids[$author_id] = $author_id; // set pour éviter les doublons
+			}
+		}
+	}
+	if (empty($author_ids)) {
+		return array();
+	}
+	return get_posts(array(
+		'post_type'      => 'auteurs',
+		'post__in'       => array_values($author_ids),
+		'posts_per_page' => -1,
+		'orderby'        => 'title',
+		'order'          => 'ASC',
+	));
+}
\ No newline at end of file