s

src/Form.php

@@ -8,6 +8,12 @@ use yii\helpers\ArrayHelper;
 
 abstract class Form extends Model
 {
+    /**
+     * Для контейнера форм, необходимо ли оставить порядок для форм, которые пришли
+     * @var bool $keepOrder
+     */
+    protected $keepOrder = false;
+
     public function load($data, $formName = null): bool
     {
         $formData = $data;
@@ -51,8 +57,12 @@ abstract class Form extends Model
                 }
                 if (count(array_filter(array_keys($data[$name]), 'is_string')) === 0) {
                     $this->$name = [];
-                    foreach ($data[$name] as $ignored) {
-                        $this->$name[] = new $form->className();
+                    foreach ($data[$name] as $key => $ignored) {
+                        if ($this->keepOrder) {
+                            $this->$name[$key] = new $form->className();
+                        } else {
+                            $this->$name[] = new $form->className();
+                        }
                     }
                     $success = Model::loadMultiple($this->$name, $data[$name], '') || $success;
                 } else {

src/FormContainer.php

@@ -7,6 +7,11 @@ abstract class FormContainer extends Form
     protected $internalForms;
     public $forms = [];
 
+    public function __construct(bool $keepOrder = false, array $config = [])
+    {
+        $this->keepOrder = $keepOrder;
+    }
+
     public function load($data, $formName = null): bool
     {
         $data = ['forms' => $data];