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Odoo Development Cookbook

Odoo Development Cookbook

By : Daudi, Vora, Gajjar, Fayolle, Holger Brunn, Daniel Reis
4.2 (12)
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Odoo Development Cookbook

Odoo Development Cookbook

4.2 (12)
By: Daudi, Vora, Gajjar, Fayolle, Holger Brunn, Daniel Reis

Overview of this book

The latest version of the powerful Odoo framework uncovers a wide variety of features for rapid application development. Written by seasoned Odoo experts, this updated Odoo Development Cookbook will help you explore Odoo 17’s new features and use them to develop applications from scratch. You'll learn about website development concepts and get to grips with the Odoo Web Library (OWL), as well as create a new Odoo module from the ground up before progressing to advanced framework concepts. The book also shows you how to modify existing applications, including Point of Sale (POS) applications. Going beyond backend development, you'll discover advanced JavaScript recipes for creating new views and widgets. You'll get a clear understanding of website development and be on your way to becoming a proficient Odoo developer by studying performance optimization, debugging, and automated testing. By the end of this book, you'll have the knowledge you need to build impressive applications and be well-versed in Odoo development best practices.
Table of Contents (28 chapters)
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17
Chapter 17: In-App Purchasing with Odoo

Adding constraints validations to a model

We want to make sure that our models do not have invalid or inconsistent data. Odoo has two kinds of constraints to do this:

  • Database-level constraints: These are the constraints that PostgreSQL supports. The most common ones are the UNIQUE constraints, which prevent duplicate values. We can also use CHECK and EXCLUDE constraints for other conditions. These constraints are fast and reliable, but they are limited by what PostgreSQL can do.
  • Server-level constraints: These are the constraints that we write in Python code. We can use these constraints when the database-level ones are not enough for our needs. These constraints are more flexible and powerful, but they are slower and more complex.

Getting ready

We will continue using the my_hostel add-on module from the previous recipe. We will use the hostel room model and add some constraints to it. We will use the hostel room model from Chapter 3, Creating Odoo Add-On Modules...

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