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Mongoose for Application Development

You're reading from   Mongoose for Application Development Mongoose streamlines application development on the Node.js stack and this book is the ideal guide to both the concepts and practical application. From connecting to a database to re-usable plugins, it's all here.

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Product type Paperback
Published in Aug 2013
Publisher Packt
ISBN-13 9781782168195
Length 142 pages
Edition 1st Edition
Languages
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Author (1):
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Simon Holmes Simon Holmes
Author Profile Icon Simon Holmes
Simon Holmes
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Table of Contents (18) Chapters Close

Mongoose for Application Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Introducing Mongoose to the Technology Stack 2. Establishing a Database Connection FREE CHAPTER 3. Schemas and Models 4. Interacting with Data – an Introduction 5. Interacting with Data – Creation 6. Interacting with Data – Reading, Querying, and Finding 7. Interacting with Data – Updating 8. Interacting with Data – Deleting 9. Validating Data 10. Complex Schemas 11. Plugins – Re-using Code Index

Writing a schema


Let's write the schema for a User in our MongoosePM application.

The first thing we have to do is declare a variable to hold the schema. I recommend taking the object name (for example, user or project) and adding Schema to the end of it. This makes following the code later on super easy.

The second thing we need to do is create a new Mongoose schema object to assign to this variable. The skeleton of this is as follows:

var userSchema = new mongoose.Schema({ });

We can add in the basic values of name, email, and createdOn that we looked at earlier, giving us our first user schema definition.

var userSchema = new mongoose.Schema({
  name: String,
  email: String,
  createdOn: Date
});

Modifying an existing schema

Suppose we run the application with this for a while, and then decide that we want to record the last time each user logged on, and the last time their record was modified. No problem!

We don't have to refactor the database or take it offline while we upgrade the schema...

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