/**
* @param ChildBook $book The ChildBook object to remove.
* @return $this|ChildPublisher The current object (for fluent API support)
*/
public function removeBook(ChildBook $book)
{
if ($this->getBooks()->contains($book)) {
$pos = $this->collBooks->search($book);
$this->collBooks->remove($pos);
if (null === $this->booksScheduledForDeletion) {
$this->booksScheduledForDeletion = clone $this->collBooks;
$this->booksScheduledForDeletion->clear();
}
$this->booksScheduledForDeletion[] = clone $book;
$book->setPublisher(null);
}
return $this;
}