From 2836478c728e2c4b08b1c5faad4b101db53f3114 Mon Sep 17 00:00:00 2001
From: Guy Sartorelli <guy.sartorelli@silverstripe.com>
Date: Mon, 2 May 2022 18:23:36 +1200
Subject: [PATCH] API Add method to get foreign class key on polymorphic
 has_many

---
 src/ORM/PolymorphicHasManyList.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/ORM/PolymorphicHasManyList.php b/src/ORM/PolymorphicHasManyList.php
index 49a51cf97..20f9907c1 100644
--- a/src/ORM/PolymorphicHasManyList.php
+++ b/src/ORM/PolymorphicHasManyList.php
@@ -29,6 +29,14 @@ class PolymorphicHasManyList extends HasManyList
         return $this->dataQuery->getQueryParam('Foreign.Class');
     }
 
+    /**
+     * Gets the field name which holds the related object class.
+     */
+    public function getForeignClassKey(): string
+    {
+        return $this->classForeignKey;
+    }
+
     /**
      * Create a new PolymorphicHasManyList relation list.
      *