Question

我在Mongoose中有一个User类，如下所示：

module.exports = mongoose.model('User',{

    Email: String,
    Password: String,
    Firstname: String,
    Lastname: String,
    Address: String,
    Address_State: String, //index
    Zipcode: Number,

    Cars: [

        {

            Make: String,
            Model: String,
            Year: Number,
            Mileage: Number,
            Vin: String
        }

    ]
});

我在包含

的代码的另一部分中创建了一个用户对象

var user = new User({
    Email: email,
    Firstname: firstname,
    Lastname: lastname
});

我希望将汽车列表添加到对象中。

我试过

for(var motor in transportation.results) {

           user.Cars.push({

                           Make: motor.make,
                           Model: motor.model,
                           Year: motor.year,
                           Mileage: Number

                            });

}

但我得到的结果是

{
"Email":"derrick@curiousminds.com",
"Firstname":"Derrick",
"Lastname":"Franco",
"_id":"556cdfb06b98604d04d73900",
"Cars":[{"_id":"556cdfb06b98604d04d73901"}]
}

是否有特定的函数或方法将对象添加到mongoose对象中的数组？

Answer 1

在将数组添加到新用户对象的Cars数组字段之前，请先尝试创建数组。请考虑以下事项：

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Answer 2

问题是我进行循环的方式，我不得不改变

for(var motor in transportation.results) {

           user.Cars.push({

                           Make: motor.make,
                           Model: motor.model,
                           Year: motor.year,
                           Mileage: Number

                            });

}

到for

中的迭代器循环

for(var i = 0; i < transportation.results.length; i++) {

     user.Cars.push({Make: transportation.results[i].make,
                     Model: transportation.results[i].model,
                     Year: transportation.results[i].year

                     });

}//for loop

使用Mongoose Node JS将对象添加到数组

2 个答案: