You're reading from Supercharging Node.js Applications with Sequelize Create high-quality Node.js apps effortlessly while interacting with your SQL database

Product type Paperback

Published in Oct 2022

Publisher Packt

ISBN-13 9781801811552

Length 266 pages

Edition 1st Edition

Languages

JavaScript

Tools

Node.js

Concepts

Server Side Web Development

Author (1):

Daniel Durante

View More author details

Table of Contents (16) Chapters

Preface

1. Part 1 – Installation, Configuration, and the Basics

2. Chapter 1: Introduction to Sequelize and ORM in Node.js FREE CHAPTER

3. Chapter 2: Defining and Using Sequelize Models

4. Part 2 – Validating, Customizing, and Associating Your Data

5. Chapter 3: Validating Models

6. Chapter 4: Associating Models

7. Chapter 5: Adding Hooks and Lifecycle Events to Your Models

8. Chapter 6: Implementing Transactions with Sequelize

9. Chapter 7: Handling Customized, JSON, and Blob Data Types

10. Part 3 – Advanced Queries, Using Adapters, and Logging Queries

11. Chapter 8: Logging and Monitoring Your Application

12. Chapter 9: Using and Creating Adapters

13. Chapter 10: Deploying a Sequelize Application

14. Index

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Relationship patterns

In this section, we will go over the details of each type of relation (except Super-Many-To-Many, which is discussed in a later section), and how to use Sequelize to define the associations. After that, we will update the Avalon Airlines project’s models with associations.

We can combine several association patterns to define a relationship pattern. Sequelize supports four relationship patterns:

One-to-One – We would use the hasOne and belongsTo associations together.
One-to-Many – The hasMany and belongsTo associations are used for this pattern.
Many-to-Many – Two belongsToMany associations are used for this pattern.
Super-Many-to-Many – Two One-to-Many relations where the One models are still considered symbiotic. This relationship will be explained in further detail in the Creating Super Many-to-Many relationships section.