From 02e9361ea056d3f4789eb0360a82503b5ecc86f7 Mon Sep 17 00:00:00 2001
From: Ernesto Buenrostro <ernesto@mugo.ca>
Date: Fri, 7 May 2021 10:10:43 -0700
Subject: [PATCH] see #732 Encoding the extra fields so it can be stored in the
 XML

---
 .../mugoobjectrelationlist/mugoobjectrelationlisttype.php     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/datatypes/mugoobjectrelationlist/mugoobjectrelationlisttype.php b/datatypes/mugoobjectrelationlist/mugoobjectrelationlisttype.php
index f1a0001..1e2a5a8 100755
--- a/datatypes/mugoobjectrelationlist/mugoobjectrelationlisttype.php
+++ b/datatypes/mugoobjectrelationlist/mugoobjectrelationlisttype.php
@@ -2194,7 +2194,7 @@ function serializeContentClassAttribute( $classAttribute, $attributeNode, $attri
         if ( isset( $content['extra_fields'] ) )
         {
             $extra_fields = $dom->createElement( 'extra_fields' );
-            $extra_fields->appendChild( $dom->createTextNode( $content['extra_fields'] ) );
+            $extra_fields->appendChild( $dom->createTextNode( json_encode($content['extra_fields']) ) );
             $attributeParametersNode->appendChild( $extra_fields );
         }
 
@@ -2233,7 +2233,7 @@ function unserializeContentClassAttribute( $classAttribute, $attributeNode, $att
             $content['object_class'] = $objectClassNode->textContent;
         }
 
-        $extra_fields = $attributeParametersNode->getElementsByTagName( 'extra_fields' );
+        $extra_fields = json_decode( $attributeParametersNode->getElementsByTagName( 'extra_fields' ), true );
         foreach( $extra_fields as $option )
         {
             $content['extra_fields']['name'] = $option->getAttribute( 'value' );