public function pivotModel()
    {
        if (!isset($this->pivotModel)) {
            $this->pivotModel = $this->modelFactory()->get(Join::class);
        }

        return $this->pivotModel;
    }
public function pivotModel()
    {
        if (!isset($this->pivotModel)) {
            $this->pivotModel = $this->modelFactory()->get(Join::class);
        }

        return $this->pivotModel;
    }
public function pivotModel ( ) { if ( ! isset ( $ this -> pivotModel ) ) { $ this -> pivotModel = $ this -> modelFactory ( ) -> get ( Join :: class ) ; } return $ this -> pivotModel ; }
Retrieve the attachment association model.

@return ModelInterface
Retrieve the attachment association model .