What are data mapper design patterns?

What are data mapper design patterns?

Data mapper design patterns are architectural patterns that separate the in-memory objects from the database schema.

Can you explain how it differs from Active Record?

Sure! In Active Record, the object is responsible for both the data and the database operations, while in data mappers, the object is separate from the database logic.

What are the benefits of using data mapper patterns?

The main benefits include better separation of concerns, easier testing, and improved flexibility in changing the database schema.

Can you give an example of a framework that uses data mapper?

Yes! An example of a framework that uses the data mapper pattern is Doctrine in PHP.