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Odoo 15 Development Essentials

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

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Product type Paperback
Published in Feb 2022
Publisher Packt
ISBN-13 9781800200067
Length 548 pages
Edition 5th Edition
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Author (1):
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Daniel Reis Daniel Reis
Author Profile Icon Daniel Reis
Daniel Reis
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Table of Contents (22) Chapters Close

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

Adding a new field to an existing model

Our first task is to add the is_available Boolean field to the book model. For now, this will be a simple editable field, but at a later stage, we can imagine changing it to be automatic, based on books that have been borrowed and returned.

To extend an existing model, we must use a Python class with the _inherit attribute, identifying the model being extended. The new class inherits all of the features of the parent Odoo model, and we only need to declare the modifications to introduce. We can think of this type of inheritance as getting a reference for the existing model and making in-place changes to it.

Adding new fields with the in-place model extension

Extending models is done through Python classes by using the Odoo-specific inheritance mechanism that's declared using the _inherit class attribute. This _inherit class attribute identifies the model to be extended. The declared calls capture all the features of the inherited...

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