php.activerecord

Subject: Active Records + Composite + Entity + DB Join + PHP

Hello,
I am with a doubt architecture that believe it is very basic, do you guys could help me?

My scenario is as follows:

DataBase:

Table: Participant
Fields: id primary key, name varchar (60), email varchar (110)

Table: Result
Fields: id primary key, participant (id participant), int points

Entity:

class ParticipantEntity {
    private $ id;
    private $ name;
    private $ email;
}

class ResultEntity {
    private $ id;
    private $ participant;
    private $ points;
}

Model:

class ResultModel {
    public function findAll () {
        return $ this-> db-> get_where ('result', array ());
    }
}

So far so good, I believe this course. I have a table result that has a foreign key participant.

Only to call my model results, as I do for my popular result entity, and the participant attribute is a participant entitidade class? Is there a pattern to it?

I believe the question should be the common good, as I populo an entity when I have queries with joins + composite pattern.

Thank you.