belongsTo(Webinar::class, 'webinar_id', 'id'); } public function bundle() { return $this->belongsTo(Bundle::class, 'bundle_id', 'id'); } public function product() { return $this->belongsTo(Product::class, 'product_id', 'id'); } public function group() { return $this->belongsTo(Group::class, 'group_id', 'id'); } public function role() { return $this->belongsTo(Role::class, 'role_id', 'id'); } }