未删除事件是否为猫鼬模式触发? [英] Pre remove event not firing for mongoose schema?

问题描述

这没有开火！不知道为什么，非常感谢您的帮助.

This isn't firing! No idea why, would really appreciate help here.

 Booking.find({_id: key}).remove(function(err, result){
   if (err) { console.err("ERR", err) }
   else {
     console.log("remove result", result);
   }
 })


 BookingSchema.pre('remove', function (next) {
   console.log("THIS ID", this._id);
   next();
 });

推荐答案

根据 doc ，

对于remove()没有查询挂钩，仅针对文档.如果设置了'remove'挂钩，则在调用myDoc.remove()时将触发该钩子，而不是在调用MyModel.remove()时将其触发.

There is no query hook for remove(), only for documents. If you set a 'remove' hook, it will be fired when you call myDoc.remove(), not when you call MyModel.remove().

那么您可以使用这个

Booking.find({_id: key}, function(err, books){
    if (err)
       throw err;
    else {
       books.forEach(function(book){
           book.remove(function(err){
              // the 'remove' pre events are emitted before this book is removed.
           });
       })
    }
});

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