/**
  * Method called to associate a ConceptProperty object to this object
  * through the ConceptProperty foreign key attribute
  *
  * @param      ConceptProperty $l ConceptProperty
  * @return     void
  * @throws     PropelException
  */
 public function addConceptProperty(ConceptProperty $l)
 {
     $this->collConceptPropertys[] = $l;
     $l->setVocabulary($this);
 }