<div class='wrapper'>
  <div class='container' *ngFor='let group of groups' [dragula]='"nested-bag"'>
    <div *ngFor='let item of group.items' [innerHtml]='item.name'></div>
  </div>
</div>

class NestedRepeatExample {
  public groups: Array<any> = [
    {
      name: 'Group A',
      items: [{name: 'Item A'},{name: 'Item B'},{name: 'Item C'},{name: 'Item D'}]
    },
    {
      name: 'Group B',
      items: [{name: 'Item 1'},{name: 'Item 2'},{name: 'Item 3'},{name: 'Item 4'}]
    }
  ];
}