Book Image

Mongoose for Application Development

By : Simon Holmes
Book Image

Mongoose for Application Development

By: Simon Holmes

Overview of this book

Mongoose is all about putting the data model where it should be: in your application. You can control everything from within your application in JavaScript, eliminating the need to work with the database or a separate management system. Mongoose for Application Development is a practical, hands-on guide that takes you from installing the technology stack through the steps of developing a web application. It covers the key features of Mongoose and how to use them to rapidly develop a Node.js and MongoDB application. This book introduces the full technology stack of Node.js, MongoDB, Express, and Mongoose. It will take you through the process of building an application on this stack with a focus on how Mongoose makes the process quicker and easier. You will see how Mongoose removes a layer of complexity when dealing with MongoDB whilst giving you more control over your data from your application. You will learn how to define schemas and models for your data in JavaScript. Using these schemas and models, you will learn how to build the cornerstone of any web application that will include CRUD operations (creating, reading, updating, and deleting data). If you want to learn how to build applications quickly and efficiently using Node.js, then Mongoose and this book are ideal for you. Using practical examples throughout, Mongoose for Application Development not only teaches you about the concepts of Mongoose, but walks through how to use them to build a real-life application.
Table of Contents (18 chapters)
Mongoose for Application Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Adding validation to our project


Now that we've done the theory, why not see if you can add some validation to our MongoosePM application? We're not going to walk through this here, but do try it out yourself. If you're impatient you can of course just download the source code from Packt's website. The code contains various ways of achieving the same validation, commented out for reference.

For users, try adding the following validations:

  • Name: Make this required, and with a minimum length of five characters

  • Email: Make this required, unique, and only allow a valid e-mail address

    Tip

    Use a regular expression.

For projects, have a go at this:

  • projectName: Make this required, with a minimum length of five characters, and only accept unique values for each user

    Tip

    Use an asynchronous validator.

To get the validation working for both users and projects, you will need to:

  • Update the schemas to include validators

  • Update the create/edit controllers to interpret the error messages

  • Save the submitted data...