Models like Scala class classes interacting with DAO?

Question

I started design with Scala class classes as models, and I was interested to learn about the design decision.

Suppose we have two models: a model Userand a model Order. The model Orderrefers to the model Useras a foreign key.

case class User(id: UserId, [Other fields...], password: String)
case class Order(id: OrderId, [Other fields...], userId: UserId)

Then, given this construction, we will have a OrdersDAO with the method findByUser.

My question is: will a good design have a method Ordersin Userthat calls this DAO method and thus makes the system more OO or better isolate layers and not include this method

Thank!

Answer 1

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http://www.mehdi-khalili.com/orm-anti-patterns-part-1-active-record

https://softwareengineering.stackexchange.com/questions/70291/what-are-the-drawbacks-to-the-activerecord-pattern

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Play2 , - Ebean. , , . , : , , DAO. ( Spring Data JPA, Hibernate ..)