Maria Jane Maria Jane - 5 months ago 126
Node.js Question

mongoose save vs insert vs create

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

var notificationsSchema = mongoose.Schema({
"datetime" : {
type: Date,
default: Date.now
},
"ownerId":{
type:String
},
"customerId" : {
type:String
},
"title" : {
type:String
},
"message" : {
type:String
}
});

var notifications = module.exports = mongoose.model('notifications', notificationsSchema);

module.exports.saveNotification = function(notificationObj, callback){
//notifications.insert(notificationObj); won't work
//notifications.save(notificationObj); won't work
notifications.create(notificationObj); //work but created duplicated document
}


Any idea why insert and save doesn't work in my case? I tried create, it inserted 2 document instead of 1. That's strange.

Answer

The .save() method is a property of the model instance, while the .create() is called directly from the Model as a property and takes the object as a first parameter.

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

var notificationSchema = mongoose.Schema({
    "datetime" : {
        type: Date,
        default: Date.now
    },
    "ownerId":{
        type:String
    },
    "customerId" : {
        type:String
    },
    "title" : {
        type:String
    },
    "message" : {
        type:String
    }
});

var Notification = mongoose.model('Notification', notificationsSchema);


function saveNotification1(data) {
    var notification = new Notification(data);
    notification.save(function (err) {
        if (err) return handleError(err);
        // saved!
    })
}

function saveNotification2(data) {
    Notification.create(data, function (err, small) {
    if (err) return handleError(err);
    // saved!
    })
}

Export whatever functions you would want outside.

More at the Mongoose Docs.