解析云代码:“无法调用null的方法'_toPointer'"在关系上调用.query()时 [英] Parse Cloud Code: "Cannot call method '_toPointer' of null" when calling .query() on a relation

问题描述

这是我一直在努力的事情，找不到快速的答案.最终，我意识到我没有正确查看Parse文档.

This is something that I struggled with, and couldn't find a quick answer for. Ultimately, I realized that I wasn't reviewing the Parse documentation properly.

问题

如果您正在阅读此问题，则可能是您的云代码错误日志中出现了以下错误

If you're reading this question, perhaps you're getting the following error in your Cloud Code error log

Result: TypeError: Cannot call method '_toPointer' of null

当您尝试调用Parse.Relation的.query()方法时.

when you try to call the .query() method of a Parse.Relation.

推荐答案

解决方案

首先考虑一下您可能错误地检索了该关系.我花了相当长的时间来努力理解为什么，如果我调用Parse.Object的.get('RELATION_KEY')方法，却不断收到此错误.

Consider that you may be retrieving the relation incorrectly, in the first place. I spent quite a while struggling to understand why, if I called the .get('RELATION_KEY') method of a Parse.Object, I kept getting this error.

我应该一直在打电话 .relation('RELATION_KEY').我知道这个是在Parse.Object文档中，但是我看到"get"并停止阅读.我的错.

I should have been calling .relation('RELATION_KEY') instead. I know this is was in the Parse.Object documentation, but I saw "get" and stopped reading. My mistake.

希望有帮助.

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