从TableView中的各个类中删除领域对象导致“只能从它所属的领域中删除对象”。例外

Question

我有一个填充了Realm数组的tableView，列表数组是从其他3个Realm结果数组中组合而来的，如下面的代码所示。现在我想为每个单元格实现删除操作。但该应用程序返回了这些例外，所以请任何人都可以帮我解决这个问题吗？非常感谢你们。

class BookmarksVC: UIViewController,UITableViewDelegate,UITableViewDataSource {

var articleList: Results<DynamicObject>!
var documentList: Results<DynamicObject>!
var itArticleList: Results<DynamicObject>!
var list = [Any]()
var article: Any!
var searchBar:UISearchBar = UISearchBar(frame: CGRect(x: 0, y: 0, width: 320, height: 20))

func loadDataAndUpdateUI() {
    articleList = realm.dynamicObjects(NewsArticle.className())
    documentList = realm.dynamicObjects(Documents.className())
    itArticleList = realm.dynamicObjects(ITNewsArticle.className())
    for article in articleList {
        list.append(article)
    }
    for document in documentList {
        list.append(document)
    }
    for itArticle in itArticleList{
        list.append(itArticle)
    }
}


func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    print(list.count)
    return list.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
    article = list[indexPath.row]
    let cell = tableView.dequeueReusableCell(withIdentifier: "bookmarkCell", for: indexPath) as! BookmarkCell
    cell.configureCell(article:article)
    return cell
}

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return 100
}

func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
    let deleteAction = UITableViewRowAction(style: .default, title: "Delete") { (deleteAction, indexPath) -> Void in

        //Deletion will go here
        let itemToBeDeleted = self.list[indexPath.row]
        try! realm.write {
            realm.delete(itemToBeDeleted as! Object)
        }
    }
    return [deleteAction]
}

我还会附加用于创建这些对象的代码：

 func saveFavoriteArticle() {
    try! realm.write {
        realm.add(bookmarkItem!)
    }
    print(realm.dynamicObjects(NewsArticle.className()))
}
//Same code for 2 remaining objects