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You're reading from  Odoo 15 Development Essentials - Fifth Edition

Product typeBook
Published inFeb 2022
Reading LevelBeginner
PublisherPackt
ISBN-139781800200067
Edition5th Edition
Languages
Python
Tools
Odoo
Concepts
Enterprise Resource Planning
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Author (1)
Daniel Reis
Daniel Reis
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Daniel Reis

Daniel Reis has a degree in applied mathematics and an MBA. He has had a long career in the IT industry, mostly as a consultant implementing business applications in a variety of sectors. He has been working with Odoo (OpenERP at the time) since 2010 and is an active contributor to the Odoo Community Association (OCA), where he also serves as a board member. He is the managing director of Open Source Integrators, a leading open source and Odoo consultancy firm.
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Transactions and low-level SQL

ORM methods that are called from a client run in a transaction. Transactions ensure correctness in the case of concurrent writes or failures. During a transaction, the data records used are locked, protecting them from other concurrent transactions and ensuring that they are not unexpectedly changed. In case of failure, all the transaction changes are rolled back, returning to the initial state.

Transaction support is provided by the PostgreSQL database. When an ORM method is called from a client, a new transaction is initiated. If an error occurs during the method execution, any changes that have been made are reverted. If the method execution completes with no errors, then the changes made are committed, making them effective and visible to all other transactions.

This is automatically handled for us, and we usually don't need to worry about it. However, in some advanced use cases, it might be useful to have control over the current transaction...

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Odoo 15 Development Essentials - Fifth Edition
Published in: Feb 2022Publisher: PacktISBN-13: 9781800200067
© 2022 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Daniel Reis

Daniel Reis has a degree in applied mathematics and an MBA. He has had a long career in the IT industry, mostly as a consultant implementing business applications in a variety of sectors. He has been working with Odoo (OpenERP at the time) since 2010 and is an active contributor to the Odoo Community Association (OCA), where he also serves as a board member. He is the managing director of Open Source Integrators, a leading open source and Odoo consultancy firm.
Read more about Daniel Reis

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