belongsTo(config('scorm.models.scorm'), 'scorm_id', 'id'); } public function scoTrackings() { return $this->hasMany(config('scorm.models.scorm_sco_tracking'), 'sco_id', 'id'); } public function children() { return $this->hasMany(config('scorm.models.scorm_sco'), 'sco_parent_id', 'id'); } }