Merge pull request #372 from creative-commoners/pulls/3.6/manymanythr…

…ough-editablecolumns

FIX Allow editing extra fields from ManyManyThroughList.

src/GridFieldEditableColumns.php

@@ -24,6 +24,7 @@
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DataObjectInterface;
 use SilverStripe\ORM\ManyManyList;
+use SilverStripe\ORM\ManyManyThroughList;
 
 /**
  * Allows inline editing of grid field records without having to load a separate
@@ -165,7 +166,7 @@ public function handleSave(GridField $grid, DataObjectInterface $record)
                 }
             }
 
-            if ($list instanceof ManyManyList) {
+            if ($list instanceof ManyManyList || $list instanceof ManyManyThroughList) {
                 $extra = array_intersect_key($form->getData() ?? [], (array) $list->getExtraFields());
             }
 
@@ -250,7 +251,7 @@ public function getFields(GridField $grid, DataObjectInterface $record)
                 }
             }
 
-            if (!$field && $list instanceof ManyManyList) {
+            if (!$field && ($list instanceof ManyManyList || $list instanceof ManyManyThroughList)) {
                 $extra = $list->getExtraFields();
 
                 if ($extra && array_key_exists($col, $extra ?? [])) {