From f322a7c93a85e901fdba393d6a8891ef11cd6e59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20Melan=C3=A7on?= <ben@agaric.coop>
Date: Wed, 18 Aug 2021 22:16:50 -0400
Subject: [PATCH] Iterate through authors as getting value directly only gets
 the first

Ref #108
---
 web/modules/custom/geo_citation/geo_citation.module | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/web/modules/custom/geo_citation/geo_citation.module b/web/modules/custom/geo_citation/geo_citation.module
index 740eb8a..3745a5e 100644
--- a/web/modules/custom/geo_citation/geo_citation.module
+++ b/web/modules/custom/geo_citation/geo_citation.module
@@ -75,7 +75,12 @@ function geo_citation_pseudo_field($entity) {
     return $markup;
   }
 
-  $authors = isset($entity->field_authors->entity) ? $entity->field_authors->entity->title->value : '';
+  $authors = '';
+  foreach ($entity->field_authors as $i => $author) {
+    // @TODO replace this with https://packagist.org/packages/agaric/oxford-comma
+    $authors .= ($i > 0) ? ', ' : '';
+    $authors .= isset($author->entity) ? $author->entity->title->value : '';
+  }
   $date = $entity->field_publication_date->value;
   $year = substr($date, 0, 4);
   $title = $entity->title->value;