如何使用 Parse.Query 检索一对多关系
解析文档解释了如何在查询子对象时检索父对象：
const query = new Parse.Query(Comment);
// Include the post data with each comment
query.include("post");
const comments = await query.find();
但它并没有提到另一个方向（在我看来是自然方向）：我想查询帖子，并且我希望每个帖子都包含其评论数组。有办法做到这一点吗？
The parse documentation explains how to retrieve a parent object when querying for children:
const query = new Parse.Query(Comment);
// Include the post data with each comment
query.include("post");
const comments = await query.find();
But it says nothing about going in the other direction (the natural direction, it seems to me): I want to query for posts, and I want each post to include its array of comments. Is there a way to accomplish this?
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除非您使用 aggregate。
如果不使用聚合，您将必须执行两个查询：
You can't retrieve one post and all related comments in a single query unless you use aggregate.
Without using aggregate, you will have to perform two queries: