Get Snapshot Before Update
Get Snapshot Before Update is a software development pattern used to capture the state of data or an object immediately before it is modified, typically for purposes like auditing, debugging, rollback, or change tracking. It involves taking a 'snapshot' or copy of the current state before applying updates, ensuring that the previous version is preserved for reference or recovery. This concept is commonly implemented in database systems, version control, and state management in applications.
Developers should use this pattern when building systems that require audit trails, undo functionality, or data integrity checks, such as in financial applications, content management systems, or collaborative editing tools. It helps in debugging by allowing comparison of before-and-after states, supports compliance with regulatory requirements by logging changes, and enables features like transaction rollback in databases or version history in software.