mongoose types

Built-in PromisesMongoose asynchronous operations, like. Save () and queries, return promises/a+ conformant Promises. This means the can do things like Mymodel.findone ({}). then () and yield Mymodel.findone ({}). EXEC () (If you ' re using CO ).This means that you can do something like Mymodel.findone ({}). then () and yield Mymodel.findone ({}). exec (if you're using CO)For backwards compatibility, Mongoose 4 returns mpromise promise by default. va

Turn from: What is Https://cnodejs.org/topic/548e54d157fd3ae46b233502Mongoose?In general, we do not directly use MongoDB functions to manipulate MongoDB database Mongose is a set of Operations MongoDB database interface.SchemaA database model skeleton, stored as a file, does not have direct access to the database, which means that it does not have the ability to manipulate the database. Can be said to be a data attribute model (the traditional meaning of the table structure), or a "set" model sk

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This article is mainly to learn Scott's building a site introduction one of the study notes. 1. Build the Environment Using the node's NPM tool for the frames or classes that need to be used at the front and rear of the installation, the framework used to build the movie site is as follows: Back end: (Install with NPM) Mongoose: Tools for quick modeling of MongoDB Mongodb:nosql Database Jade: client's template engine Moment.js: Date format Front End:

Reading this article requires a basic knowledge of MongoDB in Nodejs to operate the MONGO database first understand a few concepts: MongoDB and MONGOOSEMONGODB package is a driver to provide a program to operate the MongoDB database Mongoose package is based on MongoDB built an object operation Model, which is suitable for the more important three concepts in Nodejsmongoose: Schema, which defines the structure of the database, such as the data type of

Turn http://www.cnblogs.com/skynet/archive/2010/07/24/1784110.htmlThere's a lot of mongoose in this blogger.IntroductionBefore delving into the mongoose source, we should know what the Web server is. What services does it offer? How to provide service? What protocol is used? How do clients uniquely identify a Web server's resources? Let's put aside mongoose to in

Tags: col compilation erro count lang tool val Data ViewAt this point, our site is not called a dynamic site, because the data you want is bogus, so now we're going to design the database model.MongooseThe tool module we used was mongoose, and he was able to model MongoDB in such an operation that there were several concepts in mongoose, namelySchema: pattern, in which we define the data, define the field p

Nodejs+express+ejs+mongoose instancesNodejs learning is extremely painful, here will learn something to do a tidy, is self comfort it. According to the online Todo example, with Express and Mongoose rewrite part of the code, mainly business logic this piece (CRUD), this is no difficulty. The problem that has not been solved at present is: Express cannot use Ejs layout template, check for a long time did not

As for Wikipedia, the original address: Http://en.wikipedia.org/wiki/Mongoose_ (web_server)Mongoose is a cross-platform Web server. Originated from Cesanta software company.Mongoose is built on top of mongoose embedded libraries. The Mongoose Library is used to perform restful architecture services, serve the network graphical user interface on embedded devices,

Label:Node through the mongoose to realize the deletion and modification of MongoDB New File Test.jsThe contents are as follows:var mongoose = require (' Mongoose ') , Schema = Mongoose. Schema; Mongoose.connect (' mongodb://localhost/test '); var blogschema = new Schema ({ id : {type:number, index:true}

---restore content starts---Development using Webstorm 9New nodejs+express project NewfarmerArticle Directory Configure Mongoose Creating Directories and files Insert data, Post commit JSON add a record Query data, remove newly added records 1. Configure MongooseIncrease the class library of MongooseNPM Install Mongoose--save2. Creating Directories and filesIn the models directory,

This article transferred from: http://www.cnblogs.com/jaxu/p/5595451.htmlUsing MongoDB in node. JS is a mongoose. Suppose there is a definition of the following mongoose schemas:var New Mongoose. Schema ({ biz:string, name:string, tradetype:string, totalfee:number, transactionid:string, createtime: { type:date, default: Date.now

[question]mongoose How to implement statistical query, correlated queryPosted 4 year ago author a272121742 13,025 viewsRecently put forward a demand for business, request to do statistics, we design the document set, the statistics may cross the document will be more, want to ask, mongoose can achieve statistical query and related query? For example, the student Document object has a subject Document object

MongoDB does not join, but sometimes we need to refer to other collection documents, this time we need to populate.We can populate a single document, multiple document, plain object, multiple plain objects, or all object returned by query.var mongoose = require (' Mongoose '); var Schema = Mongoose. Schema;var Personschema = new Schema ({ _id:number, name:

Mongoose implements DBRef to search for all subclass information, mongoosedbref Product table var Mongoose = require('mongoose');var Schema = Mongoose.Schema;var Product = new Schema({ image : { type : String }, description : { type : String }, price : { type : Number,

The convenience of Mongoose operation set is indeed not general, but it is mainly because you design the set in reference, however, it is a little troublesome for Mongoose to limit and identify the combination of sets when using ref to associate a set. But it doesn't matter. It's easy to use. 1. usage of the ref associated document in mongoose 2. query related

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Tags: nodejs red own creat mongod NEC Strong router bodyMongoDB Download/installMongoose NPM Install--save MongooseMongoose Database connectionConst MONGOOSE = require (' Mongoose ')Const Db_rul = ' MONGODB://LOCALHOST:27017/KOA2 'Mongoose.connect (Db_rul, function (err) {if (err) {Console.warn (' Database connection failed: ' +err)}else{console.log (' database successfully connected to: ' +db_rul )}}) Modu

1 Installing the Moogoose module, attaching the--save parameter add the package information to the Package.json fileNPM Install--save Moogoose2 Load the Moogoose module and connect to the databasevar mongoose = require (' Mongoose '); // Mongoose.connect (' Mongodb://mongod address IP (ipdress)/database name to be connected (databasename) '); Mongoose.connect (' mongodb://localhost/news ');3 Modeling (struc