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

The execution environment

Odoo recordsets operate in an environment context, providing relevant information about the context where the operation was triggered. For example, the database cursor being used, the current Odoo user, and more.

Python code running inside a model method has access to the self recordset variable, and the local environment can be accessed with self.env. The server shell environment also provides a self reference in a similar way to what is found inside a method.

In this section, we will learn about the attributes made available by the execution environment and how to use them.

Environment attributes

As we have seen, self is a recordset. Recordsets carry environment information with them such as the user browsing the data and additional context-related information (for example, the active language and time zone).

The current environment can be accessed using the env attribute of a recordset, as shown in this example:

>>> self.env...