public function isSource($newStatus = true)
    {
        $oldStatus = $this->isSource;

        if (func_num_args()) {
            $this->isSource = $newStatus;
        } // if

        return $oldStatus;
    }
public function isSource($newStatus = true)
    {
        $oldStatus = $this->isSource;

        if (func_num_args()) {
            $this->isSource = $newStatus;
        } // if

        return $oldStatus;
    }
public function isSource ( $ newStatus = true ) { $ oldStatus = $ this -> isSource ; if ( func_num_args ( ) ) { $ this -> isSource = $ newStatus ; } // if return $ oldStatus ; }
Is this this the relation source?
@param bool $newStatus The new status.
@return bool Returns the old status.
Is this this the relation source?