orionis.orm.relations.RelationsMixin

Relationship factories and loaded-relation storage for every model.

Concrete models declare relationships as regular instance methods calling the factories below, mirroring Eloquent:

class User(Model):
    def posts(self):
        return self.hasMany(Post)

    def profile(self):
        return self.hasOne(Profile)

Instance methods (rather than class-body descriptors) are used deliberately: a descriptor such as posts = hasMany(Post) would be evaluated while the class body executes, which breaks the moment two related models reference each other from separate modules (or even from the same module when one is declared after the other) -- a forward-reference problem regular methods sidestep entirely, since their body only runs once every involved class already exists.

The mixin also owns the _relations mapping every model instance carries, used to cache eager-loaded results (~orionis.orm.query.builder.ModelQueryBuilder.withRelations).