Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Odoo 11 Development Essentials

You're reading from   Odoo 11 Development Essentials Develop and customize business applications with Odoo 11

Arrow left icon
Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788477796
Length 336 pages
Edition 3rd Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Daniel Reis Daniel Reis
Author Profile Icon Daniel Reis
Daniel Reis
Arrow right icon
View More author details
Toc

Table of Contents (16) Chapters Close

Preface 1. Quick Start – The Odoo Developer Mode and Concepts FREE CHAPTER 2. Installing and Organizing the Development Environment 3. Your First Odoo Application – A Practical Overview 4. Models – Structuring the Application Data 5. Import, Export, and Module Data 6. The ORM API – Handling Application Data 7. Business Logic – Supporting Business Processes 8. External API – Integrating with Other Systems 9. Backend Views – Design the User Interface 10. Kanban Views and Client-Side QWeb 11. Reports and Server-Side QWeb 12. Creating Website Frontend Features 13. Debugging and Automated Tests 14. Deploying and Maintaining Production Instances 15. Other Books You May Enjoy

Extending models


To extend an existing model, we use a Python class with an _inherit attribute, identifying the model to be extended. The new class inherits all the features of the parent Odoo model, and we only need to declare the modifications we want to introduce. These modifications will also be available everywhere else this model is used. We can think about this type of inheritance as getting a reference for the existing model and making in-place changes to it.

Adding fields to a model

We will extend the todo.task model to add some fields to it. As an example, we will now add the effort_estimate field, to be used for the amount of time expected to be spent on the task.

We will do this in a models/todo_task_model.py file, so we should also import it in the todo_stage/models/__init__.py file to have this content:

from . import todo_task_tag_model
from . import todo_task_stage_model
from . import todo_task_model

Now, create the todo_stage/models/todo_task_model.py file,  extending the original...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime