Book Image

Odoo 14 Development Cookbook - Fourth Edition

By : Parth Gajjar, Alexandre Fayolle, Holger Brunn, Daniel Reis
5 (2)
Book Image

Odoo 14 Development Cookbook - Fourth Edition

5 (2)
By: Parth Gajjar, Alexandre Fayolle, Holger Brunn, Daniel Reis

Overview of this book

With its latest iteration, the powerful Odoo framework released a wide variety of features for rapid application development. This updated Odoo development cookbook will help you explore the new features in Odoo 14 and learn how to use them to develop Odoo applications from scratch. You'll learn about the new website concepts in Odoo 14 and get a glimpse of Odoo's new web-client framework, the Odoo Web Library (OWL). Once you've completed the installation, you'll begin to explore the Odoo framework with real-world examples. You'll then create a new Odoo module from the ground up and progress to advanced framework concepts. You'll also learn how to modify existing applications, including Point of Sale (POS) applications. This book isn't just limited to backend development; you'll discover advanced JavaScript recipes for creating new views and widgets. As you progress, you'll learn about website development and become a quality Odoo developer by studying performance optimization, debugging, and automated testing. Finally, you'll delve into advanced concepts such as multi-website, In-App Purchasing (IAP), Odoo.sh, the IoT Box, and security. By the end of the book, you'll have all the knowledge you need to build impressive Odoo applications and you'll be well versed in development best practices that will come in handy when working with the Odoo framework.
Table of Contents (26 chapters)

Using delegation inheritance to copy features to another model

The third type of inheritance is Delegation inheritance. Instead of _inherit, it uses the _inherits class attribute. There are cases where, rather than modifying an existing model, we want to create a new model based on an existing one to use the features it already has. We can copy a model's definitions with prototype inheritance, but this will generate duplicate data structures. If you want to copy a model's definitions without duplicating data structures, then the answer lies in Odoo's delegation inheritance, which uses the _inherits model attribute (note the additional s).

Traditional inheritance is quite different from the concept in object-oriented programming. Delegation inheritance, in turn, is similar, in that a new model can be created to include the features from a parent model. It also supports polymorphic inheritance, where we inherit from two or more other models.

We have a library with...