You're reading from Odoo 15 Development Essentials Enhance your Odoo development skills to create powerful business applications

Product type Paperback

Published in Feb 2022

Publisher Packt

ISBN-13 9781800200067

Length 548 pages

Edition 5th Edition

Languages

Python

Tools

Odoo

Concepts

Enterprise Resource Planning

Author (1):

Daniel Reis

Preface

1. Section 1: Introduction to Odoo Development

2. Chapter 1: Quick Start Using the Developer Mode FREE CHAPTER

3. Chapter 2: Preparing the Development Environment

4. Chapter 3: Your First Odoo Application

5. Chapter 4: Extending Modules

6. Section 2: Models

7. Chapter 5: Importing, Exporting, and Module Data

8. Chapter 6: Models – Structuring the Application Data

9. Section 3: Business Logic

10. Chapter 7: Recordsets – Working with Model Data

11. Chapter 8: Business Logic – Supporting Business Processes

12. Chapter 9: External API – Integrating with Other Systems

13. Section 4: Views

14. Chapter 10: Backend Views – Designing the User Interface

15. Chapter 11: Kanban Views and Client-Side QWeb

16. Chapter 12: Creating Printable PDF Reports with Server-Side QWeb

17. Chapter 13: Creating Web and Portal Frontend Features

18. Section 5: Deployment and Maintenance

19. Chapter 14: Understanding Odoo Built-In Models

20. Chapter 15: Deploying and Maintaining Production Instances

21. Other Books You May Enjoy

Relationships between models

Non-trivial business applications need to use relationships between the different entities involved. To do this, we need to use relational fields.

Looking at the Library app, the Book model has the following relationships:

Each book can have one publisher, and each publisher can have many books. From the book's point of view, this is a many-to-one relationship. It is implemented in the database as an integer field, holding the ID of the related publisher record, and a database foreign key in it, enforcing referential integrity.
The reverse of this, from the publisher's point of view, is a one-to-many relation, meaning that each publisher can have many books. While this is also a field type in Odoo, its database representation relies on the many-to-one relationship. We know the books related to a publisher running a query on books, filtered by the publisher ID.
Each book can have many authors, and each author can have many books...