猫鼬更新文档使用findByIdAndUpdate失败

本文介绍了猫鼬更新文档使用findByIdAndUpdate失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

尝试使用findByIdAndUpdate更新MongoDB文档:

Trying to update MongoDB document using findByIdAndUpdate:

var landmarkModel = mongoose.model('landmark', landmarkSchema, 'landmarks'); var lm = new landmarkModel(); //adding data to schema here, like: lm.name = req.body.name; lm.findByIdAndUpdate(req.body._id, lm, function (err, landmark) { if (err) console.log(err); else{ console.log(null, landmark); } });

返回错误:Object lm has no method 'findByIdAndUpdate'

我尝试用landmarkModel.findByIdAndUpdate换出lm.findByIdAndUpdate值，但这也不起作用.我在做什么错了?

I have tried swapping out the lm.findByIdAndUpdate value with landmarkModel.findByIdAndUpdate but that doesn't work either. What am I doing wrong?

推荐答案

findByIdAndUpdate是静态方法:

var landmarkModel = mongoose.model('landmark', landmarkSchema, 'landmarks'); var lm = req.body; delete lm._id; landmarkModel.findByIdAndUpdate(req.body._id, lm, console.log);

请注意，landmarkModel接受普通的js对象.

Note that landmarkModel accepts plain js objects.

如果您已经有一个mongoose对象，那么最好改用save:

If you already have a mongoose object then it's best to use save instead:

var landmarkModel = mongoose.model('landmark', landmarkSchema, 'landmarks'); landmarkModel.findById(req.body._id, function (err, lm) { if (err) return next(err); //adding data to schema here, like: lm.name = req.body.name; lm.save(console.log); });