From 15615df6d38bbf7138461a3466fa2a62dc08d761 Mon Sep 17 00:00:00 2001
From: Guido <G.rus@de-rus.nl>
Date: Thu, 16 Feb 2023 13:18:31 +0100
Subject: [PATCH] Fix Polymorphic Relationships

---
 src/Flexible.php | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/Flexible.php b/src/Flexible.php
index ceba13b1..35fe2cc9 100644
--- a/src/Flexible.php
+++ b/src/Flexible.php
@@ -404,13 +404,31 @@ protected function extractValue(NovaRequest $request, $attribute)
             return;
         }
 
-        if (! is_array($value)) {
-            throw new \Exception('Unable to parse incoming Flexible content, data should be an array.');
+        if (!is_array($value)) {
+            return $this->mapPolymorphicRelationships($value);
         }
 
         return $value;
     }
 
+    /**
+     * Try decoding value to array to make it work with Polymorphic Relationships
+     * @param string $value
+     * @return \Illuminate\Support\Collection
+     * @throws \Exception
+     */
+    protected function mapPolymorphicRelationships(string $value) {
+        if (!$value = @json_decode($value, true)) {
+            throw new \Exception('Unable to parse incoming Flexible content, data should be an array.');
+        }
+        return collect($value)->map(function ($item) {
+            $item['attributes'] = collect($item['attributes'])->mapWithKeys(function ($layout, $key) use ($item) {
+                return [str_replace("{$item['key']}__", "", $key) => $layout];
+            })->toArray();
+            return $item;
+        });
+    }
+
     /**
      * Resolve all contained groups and their fields
      *