Book Image

Odoo 15 Development Essentials - Fifth Edition

By : Daniel Reis
4.5 (2)
Book Image

Odoo 15 Development Essentials - Fifth Edition

4.5 (2)
By: Daniel Reis

Overview of this book

Odoo is fast becoming the reference open source platform for business applications thanks to the fact that it provides the infrastructure needed for developers to deliver software solutions for any business process quickly. Odoo's layered module approach makes it particularly effective for combining and extending features. This updated fifth edition is a tutorial-style introduction to essential Odoo development topics. The book starts by covering the development essentials for building business applications and takes you through Odoo installation and configuration, gradually transitioning from having no specific knowledge of Odoo to being ready for application development. You'll then learn how to develop your first Odoo application, while covering topics such as models and views. Later chapters will get you up to speed with using server APIs to add business logic, helping you lay a solid foundation for advanced topics. As you progress, you’ll get equipped to build and customize your applications and explore the new features available in Odoo 12 and beyond, such as in-memory ORM and computed writable fields. Finally, you’ll gain insights into building business logic and using the Odoo API to integrate with various applications. By the end of this book, you’ll be able to build business apps from scratch using the latest version of Odoo.
Table of Contents (22 chapters)
1
Section 1: Introduction to Odoo Development
6
Section 2: Models
9
Section 3: Business Logic
13
Section 4: Views
18
Section 5: Deployment and Maintenance

Accessing data in recordsets

Once we have a recordset, we want to inspect the data contained in it. So, in the following sections, we will explore how to access data in recordsets.

We can get field values for individual records called singletons. Relational fields have special properties, and we can use dot-notation to navigate through linked records. Finally, we will discuss some considerations for when we need to handle date and time records and convert them between different formats.

Accessing individual record data

When a recordset has only one record it is called a singleton. Singletons are still recordsets and can be used wherever a recordset is expected.

But unlike multi-element recordsets, singletons can access their fields using dot-notation, as follows:

>>> print(self.name)
OdooBot

In the next example, we can see that the same self singleton recordset also behaves as a recordset, and we can iterate it. It has only one record, so only one name is...