/**
  * Get the associated Sale object
  *
  * @param      PropelPDO Optional Connection object.
  * @return     Sale The associated Sale object.
  * @throws     PropelException
  */
 public function getSale(PropelPDO $con = null)
 {
     if ($this->aSale === null && $this->sale_id !== null) {
         $this->aSale = SalePeer::retrieveByPk($this->sale_id);
         /* The following can be used additionally to
         		   guarantee the related object contains a reference
         		   to this object.  This level of coupling may, however, be
         		   undesirable since it could result in an only partially populated collection
         		   in the referenced object.
         		   $this->aSale->addProductHasSales($this);
         		 */
     }
     return $this->aSale;
 }