Check for children fields when mutating data

Author: Baspa

src/Concerns/CanMapDynamicFields.php

@@ -85,15 +85,32 @@ protected function mutateBeforeSave(array $data): array
         });
     }
 
+    private function resolveFieldConfigAndInstance(Model $field): array
+    {
+        $fieldConfig = Field::tryFrom($field->field_type)
+            ? $this->fieldInspector->initializeDefaultField($field->field_type)
+            : $this->fieldInspector->initializeCustomField($field->field_type);
+
+        return [
+            'config' => $fieldConfig,
+            'instance' => new $fieldConfig['class'],
+        ];
+    }
+
     protected function mutateFormData(array $data, callable $mutationStrategy): array
     {
         foreach ($this->record->fields as $field) {
-            $fieldConfig = Field::tryFrom($field->field_type)
-                ? $this->fieldInspector->initializeDefaultField($field->field_type)
-                : $this->fieldInspector->initializeCustomField($field->field_type);
+            $field->load('children');
 
-            $fieldInstance = new $fieldConfig['class'];
+            ['config' => $fieldConfig, 'instance' => $fieldInstance] = $this->resolveFieldConfigAndInstance($field);
             $data = $mutationStrategy($field, $fieldConfig, $fieldInstance, $data);
+
+            if (!empty($field->children)) {
+                foreach ($field->children as $nestedField) {
+                    ['config' => $nestedFieldConfig, 'instance' => $nestedFieldInstance] = $this->resolveFieldConfigAndInstance($nestedField);
+                    $data = $mutationStrategy($nestedField, $nestedFieldConfig, $nestedFieldInstance, $data);
+                }
+            }
         }
 
         return $data;