The Active Record Pattern popularised by Ruby on Rails goes against the modularity provided by Nest.Js.

Nest.js encourages the use of the Repository pattern.

Data Mapper/Repository pattern:

• Separates data access logic from business logic • Data Mapper: Maps data between domain objects and the database • Repository: Provides methods for querying and manipulating domain objects • Promotes separation of concerns, testability, and maintainability Active Record:

• Combines data access and business logic within domain objects • Domain objects encapsulate database interactions • Simplifies development by allowing direct manipulation of objects • Can make separation of concerns and independent testing more challenging