Rally 的 Fetch API 是否支持递归抓取？
我正在尝试在 Excel 文档中构建 UserStory 层次结构的树视图。现在，我正在递归地遍历 Jason 对象，尝试获取每个用户故事的子对象，并继续直到子对象计数为 0。
但是，在获取最初的子对象后，我一无所获。对于每一个孩子，有些人也应该有孩子。
Rally 有什么办法可以实现这一点吗？
I am trying to build a tree view of our UserStory hierarchy in an excel document. Right now, I am recursively going through Jason objects attempting to get the children for each user story, and continuing until the child count is 0.
But, I am getting nowhere after getting the initial children. For each one of those children, some should have children as well.
Is there some way Rally allows this?
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WSAPI 曾经支持这一点，但对于深度嵌套的层次结构来说效率非常低。目前仅限于一级。您必须递归地查找层次结构每个级别的子级。
The WSAPI used to support this but it was terribly inefficient for deeply nested hierarchies. It is limited to one level currently. You'll have to recursively look up the children at each level of the hierarchy.
查看应用程序目录中的 Epic Progress 应用程序，了解如何使用占位符遍历树的示例。
Take a look at the Epic Progress app in the app catalog for an example of how placeholders can be used to traverse a tree.