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