Book Image

Odoo 11 Development Essentials - Third Edition

By : Daniel Reis
Book Image

Odoo 11 Development Essentials - Third Edition

By: Daniel Reis

Overview of this book

Odoo continues to gain worldwide momentum as the best platform for open source ERP installations. Now, with Odoo 11, you have access to an improved GUI, performance optimization, integrated in-app purchase features, and a fast-growing community to help transform and modernize your business. With this practical guide, you will cover all the new features that Odoo 11 has to offer to build and customize business applications, focusing on the publicly available community edition. We begin with setting up a development environment, and as you make your way through the chapters, you will learn to build feature-rich business applications. With the aim of jump-starting your Odoo proficiency level, from no specific knowledge to application development readiness, you will develop your first Odoo application. We then move on to topics such as models and views, and understand how to use server APIs to add business logic, helping to lay a solid foundation for advanced topics. The book concludes with Odoo interactions and how to use the Odoo API from other programs, all of which will enable you to efficiently integrate applications with other external systems.
Table of Contents (20 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Understanding the ORM decorators


In the Odoo Python code encountered so far we can see that decorators, such as @api.multi, are frequently used in model methods. These are important for the ORM, and allow it to give those methods specific uses.

Let's see the ORM decorators we have available, and when each should be used.

Record handling decorators

Most of the time, we want a custom method to perform some actions on a recordset. For this, we should use @api.multi, and in that case, the self argument will be the recordset to work with. The method's logic will usually include a for loop iterating on it. This is surely the most frequently used decorator.

Note

If no decorator is used on a model method, it will default to  @api.multi behavior.

In some cases, the method is prepared to work with a single record (a singleton). Here we could use the  @api.one decorator, but this is not advised because for Version 9.0 it was announced it would be deprecated and may be removed in the future.

Instead, we should...