Add event to allow custom object creation on import

Event/CreateObjectEvent.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Avro\CsvBundle\Event;
+
+use Symfony\Contracts\EventDispatcher\Event;
+
+/**
+ * @author Steffen Roßkamp <[email protected]>
+ */
+class CreateObjectEvent extends Event
+{
+    protected $object;
+    protected string $class;
+
+    /**
+     * @psalm-param class-string $class
+     */
+    public function __construct(string $class)
+    {
+        $this->class = $class;
+    }
+
+    public function setObject(?object $object): void
+    {
+        $this->object = $object;
+    }
+
+    /**
+     * Get the doctrine object if set.
+     */
+    public function getObject(): ?object
+    {
+        return $this->object;
+    }
+
+    /**
+     * @return string
+     * @psalm-return class-string
+     */
+    public function getClass(): string
+    {
+        return $this->class;
+    }
+}

Import/Importer.php

@@ -9,6 +9,7 @@
 
 use Avro\CaseBundle\Util\CaseConverter;
 use Avro\CsvBundle\Event\AssociationFieldEvent;
+use Avro\CsvBundle\Event\CreateObjectEvent;
 use Avro\CsvBundle\Event\CustomFieldEvent;
 use Avro\CsvBundle\Event\RowAddedEvent;
 use Avro\CsvBundle\Event\RowErrorEvent;
@@ -191,7 +192,12 @@ private function convertToFormFieldName($input): string
     private function addRow($row, $fields, $andFlush = true): bool
     {
         // Create new entity
-        $entity = new $this->class();
+        $event = new CreateObjectEvent($this->class);
+        $this->dispatcher->dispatch($event);
+        $entity = $event->getObject();
+        if (null === $entity) {
+            $entity = new $this->class();
+        }
         // Loop through fields and set to row value
         foreach ($fields as $k => $v) {
             if ($this->metadata->hasField(lcfirst($v))) {