Question

我需要使用Node.js通过单个MongoDB查询找到集合数据。我正在解释下面的集合。

f_user_login：

{
    "_id": {
        "$oid": "5981b48654d471000459208e"
    },
    "email": "subhrajyoti.pradhan@oditeksolutions.com",
    "password": "d0e49bcba946540cb3d5fc808870d16b",
    "dob": "02-08-2017",
    "created_date": "2017-08-02 11:16:21",
    "updated_date": "2017-08-02 11:16:21",
    "status": 1,
    "token": "b85ff4c47093217587f8c7f2fff7ff86b1bcbf6a7321705871435929ee38",
    "verification_id": ""
}

{
    "_id": {
        "$oid": "598aa189e5f78d00042f48ae"
    },
    "email": "subhrajyotipradhan@gmail.com",
    "password": "d0e49bcba946540cb3d5fc808870d16b",
    "dob": "1986-04-10",
    "created_date": "2017-08-09 05:45:44",
    "updated_date": "2017-08-09 05:45:44",
    "status": 0,
    "token": "",
    "verification_id": "7ffbe3f9be82b2af84491d3e8dff4fa1a65f973d"
}

我正在解释下面的代码。

exports.userSignin=function(req,res){
    var email=req.body.email;//subhrajyotipradhan@gmail.com
    var password=req.body.password;//d0e49bcba946540cb3d5fc808870d16b
    var pass=mden(password);
    if (email !='' && password !='') {
        db.f_user_login.count({email:email,password:pass,status:1},function(err,docs){
            if(docs > 0){
                token=crypto.randomBytes(30).toString('hex');
                db.f_user_login.update({email:email},{$set:{token:token}},function(err,doc){
                    db.f_user_login.find({email:email},function(error,docu){
                        var edata=[{"email": docu[0].email,"dob": docu[0].dob,"created_date":docu[0].created_date ,"id": docu[0]._id,"updated_date":docu[0].updated_date,"token_id":token}];
                        var data={"statusCode": 200,"data":edata,"message": "The user logged successfully."};
                        res.send(data);
                    })
                })
            }else{
                console.log(email,password);
                db.f_user_login.find({$or:[{email:email},{password:pass},{status:1}]},function(err,getdocs){
                    if (!err) {
                        var uemail=getdocs[0].email;
                        var upass=getdocs[0].password;
                        var ustatus=getdocs[0].status;
                        console.log('email,pass,status',uemail,upass,ustatus);
                        if (uemail != email) {
                            var data={"statusCode": 401,"error": "Unauthorized","message": "Invalid email id .Please provide a valid email id"};
                        }
                        if (upass != pass) {
                            var data={"statusCode": 401,"error": "Unauthorized","message": "Invalid Password .Please provide a valid Password"};
                        }
                        if (ustatus == 0) {
                            var data={"statusCode": 401,"error": "Unauthorized","message": "you have not verified your account using the link sent to your email."};
                        }
                        res.send(data);
                    }
                })
            }
        })
    }
}

此处我的输入email and password是正确的，我需要检查状态并获取此you have not verified your account using the link sent to your email.消息。但不幸的是，两个文件都有相同的密码，它总是检查第一个文件，但最初我需要检查第二个文件进行验证。

可以使用3个三个不同的查询，但在这里我想要操作一个查询。这可能吗？

Answer 1

您可以在整个过程中使用以下代码：

注意：可能需要更改一些拼写错误或代码。但你可以使用基本的想法。

 if (email !='' && password !='') {
   console.log(email,password);
   db.f_user_login.find({$and:[{email:email},{password:pass}]},function(err,getdocs){
    if (!err && /*check if the getdocs is not empty*/) {
        var uemail=getdocs[0].email;
        var upass=getdocs[0].password;
        var ustatus=getdocs[0].status;
        // update your collection from here with ID
        // Remember update is work fine with id
        console.log('email,pass,status',uemail,upass,ustatus);
        if (ustatus === 0) {
            var data={"statusCode": 401,"error": "Unauthorized","message": "you have not verified your account using the link sent to your email."};
        }else if(ustatus === 1){
            var data={"statusCode": 200,"data":edata,"message": "The user logged successfully."};
        }
        res.send(data);
    }
  })
}

使用Node.js在单个mongoDB查询中找不到数据

1 个答案: