Try this:

public function masterOf (){
    return $this->belongsToMany('Fighter', 'fighter_fighter', 'fighter_id', 'fighter_id_mestre');
}
public function trainedBy(){
    return $this->belongsToMany('Fighter', 'fighter_fighter', 'fighter_id_mestre', 'fighter_id');
}

Anyway, maybe is better to rename table with something like "fighter_training" ;)

NeiPCs said:

Try this:

public function masterOf (){
   return $this->belongsToMany('Fighter', 'fighter_fighter', 'fighter_id', 'fighter_id_mestre');
}
public function trainedBy(){
   return $this->belongsToMany('Fighter', 'fighter_fighter', 'fighter_id_mestre', 'fighter_id');
}

Anyway, maybe is better to rename table with something like "fighter_training" ;)

Thank you so much, man. I was facing the same problem and this solved it. I already knew how to override the fields but was strugling on how to determine which would be the pivot in this kind of many-to-many self-relation using the ORM.

Cheers.