Saving multiple field array in mongodb using mongoose

Question

//Here is model

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var ObjectId = Schema.ObjectId;

// Task schema
var taskSchema = mongoose.Schema({

 tasktype  : {type: String},
 createdon : {type: Date, default: Date.now},
 createdby : {type: Schema.Types.ObjectId,ref: 'User'},
 visitedby : [{type: Schema.Types.ObjectId,ref: 'User'}],
 taskinfo  : [{ isactive:Boolean, taskobject:String, taskdetails:String, iscompleted:Boolean}]  

});
module.exports = mongoose.model('Task', taskSchema);

// route

var Task     = require ('../models/task');
var User       = require ('../models/user');
var config     = require ('../../config');
module.exports = function(app, express) {

    var api = express.Router();

  api.post('/tasks', function (req, res) {
    var task = new Task({
 // ...
 tasktype  : req.body.tasktype,
 taskinfo  : req.body.taskinfo,
      }); 

     task.save(function(err){
        if(err){
           res.send(err);
        return;
        }
       res.json({message:'Task has been created'})
      });
return api
}

While all other fields getting saved but the one with array with multiple fields always return blank like "taskinfo : [ ] "

The post method is REST API to post a task into mongoose database, for array with single field everything working fine but array with multiple field is not getting saved, someone please help me here.

Basic help will be fine, just please teach me how to save "multiple field array".

Mongoose doesnot always require subdocument structure and this can be achieved by the above model, please dont advice to use subdocument structure, I want to learn this.

Thank You.

Answer 1

I think if taskinfo has a multiple values and you want to save it as embedded document inside task document. You should have different document of task info. So,you can save like that

var TaskInfoSchema = require("taskInfo.js").TaskInfoSchema

var taskSchema = mongoose.Schema({

 tasktype  : {type: String},
 createdon : {type: Date, default: Date.now},
 createdby : {type: Schema.Types.ObjectId,ref: 'User'},
 visitedby : [{type: Schema.Types.ObjectId,ref: 'User'}],
 taskinfo  : [TaskInfoSchema]  

});
module.exports = mongoose.model('Task', taskSchema);

And now you will have different document as task info like

var taskInfo = mongoose.Schema({

     isactive:{type:Boolean}, 
     taskobject:{type:String}, 
     taskdetails:{type:String}, 
     iscompleted:{type:Boolean}

    });
    var TaskInfo = mongoose.model('TaskInfo', taskSchema);
    module.exports.TaskInfo = TaskInfo
    module.exports.TaskInfoSchema = taskSchema

When you will save task document,

 Var TaskInfo = new TaskInfo({
          isactive:true, 
          taskobject:"", 
          taskdetails:"", 
          iscompleted:true
    })



var task = {};
task.tasktype = req.body.tasktype;

you can push it

 task.taskinfo = [];
        for (var i = 0; i < req.body.taskInfo.length; i++) {
            var taskInfo = new TaskInfo(req.body.taskInfo[i]);
            task.taskinfo.push(taskInfo);
        }

Then you will save task document

var taskObj = new Task(task);

    taskObj.save(function (err) {
        if (err) {
            res.send(err);
            return;
        }
        res.json({
            message: 'Task has been created'
        })

    });
});