Eloquent - Do something on the models before returning them from a relationship

[vpratfr]

Hi,

I am looking for a way to setup some models within the context of a relationship after they get loaded by Eloquent.

Basically we have some circular relationships that Eloquent needs to be told about manually.

Something like that would be great:

  function addresses() {
      return $this->morphMany(Address::class, 'addressable', 'addressable_type', 'addressable_id')
          ->prepareModels(fn($a) => $a->setRelation('addressable', $this));     
  }

  function main_address() {
      return $this->belongsTo(Address::class, 'main_address_id')
          ->prepareModels(fn($a) => $a->setRelation('addressable', $this));     
  }

Where the prepareModels callback would be run on each related model after it gets retrieved from the database.

DB schema looks like that:

Person : id, main_address_id
Address: id, addressable_type, addressable_id

(and I am not looking for advice regarding how to change that DB schema)

Do we have anything like that in Eloquent relationships?