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

Relationships between models

Non-trivial business applications need to use relationships between the different entities involved. To do this, we need to use relational fields.

Looking at the Library app, the Book model has the following relationships:

  • Each book can have one publisher, and each publisher can have many books. From the book's point of view, this is a many-to-one relationship. It is implemented in the database as an integer field, holding the ID of the related publisher record, and a database foreign key in it, enforcing referential integrity.
  • The reverse of this, from the publisher's point of view, is a one-to-many relation, meaning that each publisher can have many books. While this is also a field type in Odoo, its database representation relies on the many-to-one relationship. We know the books related to a publisher running a query on books, filtered by the publisher ID.
  • Each book can have many authors, and each author can have many books...