云函数更新数据库某条属性为什么一直返回result: null？求大佬指点

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云函数更新数据库某条属性为什么一直返回result: null？求大佬指点Why does the cloud function keep returning result: null when a property in the database is updated? Ask for advice

I checked some information, but I didn't add it at first_ Openid, some bosses said that it was impossible to judge whether it was operated by developers without this in the table. I still couldn't add my own openid; Then someone said about the permission problem. I changed the permission to true, but it still didn't work. How to change it, it returned null and the data was not updated. It has been bothered for a long time. I hope the boss can give me some advice!

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