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