/** * Declares an association between this object and a Periodo object. * * @param Periodo $v * @return Gradeunit The current object (for fluent API support) * @throws PropelException */ public function setPeriodo(Periodo $v = null) { if ($v === null) { $this->setPeriodoId(NULL); } else { $this->setPeriodoId($v->getId()); } $this->aPeriodo = $v; // Add binding for other direction of this n:n relationship. // If this object has already been added to the Periodo object, it will not be re-added. if ($v !== null) { $v->addGradeunit($this); } return $this; }