Creating Array object in nodejs mongodb

Question

I have create one schema to store questions and answers :

var questionSchema = mongoose.Schema({
    questions : {type: String},
    details   : {type: String},
    tags      : {type: String},
    answer    : [{String}],
 });

In this i want to store multiple answers for one question but i have one question page and different page for answer my requirement is to store multiple answers in one question any suggestions.

Thanks,

Deepak

boehm_s · Accepted Answer · 2018-04-11 05:45:00Z

1

If you want to store an array of string, the correct syntax is the following :

answer: [String]

If answer is an array of objects, you can do something like that :

var questionSchema = mongoose.Schema({
  questions :{type: String},
  details   :{ type: String},
  tags      :{type: String},
  answer    :[{
    answer: String,
    tags: [String]
  }],
});

If a answer is something that you've got in your DB, you can create a schema and reference it in your question schema :

var Answer = new Schema({
  text: String,
  user_id: Number
});

var questionSchema = mongoose.Schema({
  questions :{type: String},
  details   :{ type: String},
  tags      :{type: String},
  answer    :[Answer],
});

Hope it helps,
Best regards

answered Apr 11, 2018 at 5:45

boehm_s

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9 Comments

DD93 Over a year ago

Hey, for this i have to write separate api for question and answer schema?

boehm_s Over a year ago

You do as you want, the first solution is the easiest : just store an array of strings. But if the answers are related to a user, and if you want to add a vote system later you might want to store more information about the answers. To do so, it's a good solution to represent these answers as a mongodb schema. Then you will be able to perform operations on answers without having to query all questions

DD93 Over a year ago

Hey, Its not working for me is there any way to do this

boehm_s Over a year ago

What is not working ? Which solution are you trying to implement ?

DD93 Over a year ago

i am trying second solution, would you please give some node api example to do this

|

Robert · Accepted Answer · 2018-04-11 05:41:32Z

0

HI can you try like this

var questionSchema = mongoose.Schema({
    questions :{type: String},
    details   :{ type: String},
    tags      :{type: String},
    answer    :[{
                 text: String,
                }]
 });

Also refer the doc

http://mongoosejs.com/docs/schematypes.html#schematypes

Reference link: mongoose: Referencing schema in properties or arrays

answered Apr 11, 2018 at 5:41

Robert

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