Mongoose - 如何将架构中间件接入“init"事件? [英] Mongoose - how to tap schema middleware into the 'init' event?

问题描述

Mongoose 文档 中建议我应该能够使用插入到init"钩子.

It is suggested in the Mongoose docs that I should be able to control the flow using middleware that plugs in to the "init" hook.

但是，到目前为止，我只在保存"和验证"方面取得了成功.

However, I have so far had success only with "save" and "validate".

当我做这样的事情时，这些中间件都不会被调用:

When I do something like this, neither of these middleware ever get called:

MySchema.post( "init", function (next) { console.log("post init") });
MySchema.pre( "init", function (next) { console.log("pre init") });

我错过了什么吗?

推荐答案

事实证明，init"事件/钩子在创建新模型时不会触发，只有在从数据库加载现有模型时才会触发.看来我应该改用 pre/validate 钩子.

It turns out that the "init" event/hook is not fired when creating a new Model, it is only fired, when loading an existing model from the database. It seems that I should use the pre/validate hook instead.

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