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),, 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)

Filtering recordsets

In some cases, you already have a recordset, but only you need to operate on certain records. You can, of course, iterate on the recordset, checking for the condition on each iteration and acting depending on the result of the check. It can be easier, and in some cases, more efficient, to construct a new recordset containing only the interesting records and calling a single operation on that recordset.

This recipe shows you how to use the filter() method to extract a subset of recordsets based on a condition.

Getting ready

We will reuse the simplified model that was shown in the Creating new records recipe. This recipe defines a method to extract books that have multiple authors from a supplied recordset.

How to do it...

To extract records that have multiple authors from a recordset, you need to perform the following steps:

  1. Define the method to accept the original recordset: