findoneandupdate 和重复错误 11000

Question

你好我有一个问题运行我的代码因为它说 E11000 重复键错误收集

router.put('/:city/edit',isAdminCheck, async function(req,res){
var query = req.params.city;
var update = {region:req.body.region,country:req.body.country,image:req.body.image,flag:req.body.flag,languages:req.body.languages,currencies:req.body.currencies,city:req.body.city};
CityList.findOneAndUpdate(query,update,{upsert:true}, function(error){
    if(error){
        if(error.code === 11000){
            CityList.findOneAndUpdate(query,update,{upsert:true}, function(error){
                if(error){
                    console.log(error);
                }else{
                    res.redirect("/" + req.params.cty);
                }
            })
        }
    }else{
        res.redirect("/" + req.params.city);
    }
})

});

Answer 1

您的查询不正确。应该是这个

var query = {city: req.params.city};

并且您正在执行两次相同的更新。你应该只调用一次。

CityList.findOneAndUpdate(query,update,{upsert:true}, function(error){
    if(error){
        // handle error
        }
    }else{
        res.redirect("/" + req.params.city);
    }
})

findoneandupdate 和重复错误 11000

findoneandupdate and duplicate error 11000

mongoose

mongodb

mongoose-schema