Encore\Admin\Form\Field\EmbedsMany::render PHP Метод

    public function render()
    {
        if ($this->form->builder()->isMode('create')) {
            return;
        }
        $model = $this->form->model();
        $relation = call_user_func([$model, $this->relationName]);
        if (!$relation instanceof Relation) {
            throw new \Exception('embedsMany field must be a EmbedsMany relation.');
        }
        $form = new Form($relation->getRelated(), $this->builder);
        $form->build();
        return parent::render()->with(['form' => $form->builder()])->render();
    }