Using database triggers to reliably track model history

Discover how database triggers can provide a reliable way to track model history, enforcing business logic and ensuring data integrity, while soft deletes can lead to inconsistencies and should be avoided.

Key takeaways
  • Database triggers can provide a reliable way to track model history, especially for complex applications.
  • Soft deletes can lead to inconsistencies and leaks, and should be avoided.
  • PG History uses database triggers to track changes to models, and provides a default admin integration and event log.
  • Triggers can be used to enforce business logic, such as checking for balance changes before sending an email.
  • Soft deleted objects can still be queried and included in the event log.
  • triggers can be used to track not only inserts and updates, but also deletes.
  • PG History provides a high level of reliability and allows for customization of the event log.
  • Soft deletes can be replaced with soft leading models, which provide more functionality and flexibility.
  • Cascading deletes can be handled using triggers, ensuring that all relevant dependencies are deleted.
  • PG History can be used to create a true immutable audit log, making it difficult for users to manipulate the history.
  • The library can be used for complex applications, and provides a simple way to track history.
  • Triggers can be used to track more than just inserts and updates, but also deletes, and provide a more comprehensive view of the data.
  • PG History provides a high level of customization and flexibility, making it suitable for a wide range of applications.
  • The library can be used to track history for multiple models and tables, and provides a single, centralized event log.
  • Soft deleted objects can be included in the event log, providing a complete view of all changes made to the data.
  • Triggers can be used to prevent data corruption and ensure the integrity of the data.