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

Adding a new field to an existing model

Our first task is to add the is_available Boolean field to the book model. For now, this will be a simple editable field, but at a later stage, we can imagine changing it to be automatic, based on books that have been borrowed and returned.

To extend an existing model, we must use a Python class with the _inherit attribute, identifying the model being extended. The new class inherits all of the features of the parent Odoo model, and we only need to declare the modifications to introduce. We can think of this type of inheritance as getting a reference for the existing model and making in-place changes to it.

Adding new fields with the in-place model extension

Extending models is done through Python classes by using the Odoo-specific inheritance mechanism that's declared using the _inherit class attribute. This _inherit class attribute identifies the model to be extended. The declared calls capture all the features of the inherited...