Nodejs using Mongoose to manipulate MongoDB

Nodejs operation MongoDB can use Mongoose:

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment.


Install Mongoose:

NPM Install Mongoose

Get MongoDB Connection
var conn = mongoose.connect (' mongodb://localhost/mytest ');
var Schema = Mongoose. Schema
, ObjectId = Schema.objectid;

var person = new Schema ({
Title: {type:string}
, age: {type:number, Min:5, max:20}
, Meta: {
Likes: [String]
, Birth: {type:date}
}
});
var p = mongoose.model (' ModelName22 ', person);

var Blog = Mongoose.model ("ModelName22");


Save a new record
var blog1 = new Blog ();
Blog1.id22 = 4;
Blog1.title= "ully";
Blog1.save (function (err) {
if (err) {
Console.log (' save failed ');
}
Console.log (' save Success ');
});

Find Records
Blog.find ({_id: ' 4f8678891256c4b819000002 '},function (err,docs) {
Console.log (Docs);
});


Modify a record

var conditions = {name: ' Borne '}
, update = {$set: {title: ' Xxxxb '}}
, options = {};

Blog.update ({_id: ' 4f866f35311977a81b000001 '},update,options,function (err,docs) {
Console.log (docs+ "," +err);
});


Deleting records

Blog.remove ({_id: ' 4f8678891256c4b819000002 '},function (err,docs) {
Console.log (Docs);
});

Nodejs using Mongoose to manipulate MongoDB