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Odoo 15 Development Essentials

Odoo 15 Development Essentials

By : Daniel Reis
4.7 (10)
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Odoo 15 Development Essentials

Odoo 15 Development Essentials

4.7 (10)
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)
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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

Extending models using classic in-place extension

We can think of the classic model inheritance as an in-place extension. When a Python class with the _inherit attribute is declared, it gets a reference to the corresponding model definition, to then add extensions to it. The model definition is stored in the Odoo model registry and is available for us to add further modifications to it.

Now, let's learn how to use this for frequent extension use cases: modifying the attributes of an existing field and extending Python methods to add or modify business logic.

Incrementally modifying existing fields

When we're extending a model, existing fields can be modified incrementally. This means that we only need to define the field attributes to change or add.

We will make two changes to the book fields that were created in the library_app module:

  • On the isbn field, add a help tooltip explaining that we support both 10- and 13-digit ISBNs, with the latter being implemented...
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