Zend\Stdlib\Exception\BadMethodCallException - object

Question

Here the part of the stacktrace where I have a problem:
Zend\Stdlib\Exception\BadMethodCallException
File:
/var/www/html/zf2/vendor/zendframework/zendframework/library/Zend/Stdlib/Hydrator/ArraySerializable.php:28
Message:
Zend\Stdlib\Hydrator\ArraySerializable::extract expects the provided object to implement getArrayCopy()
Stack trace:
0 /var/www/html/zf2/vendor/zendframework/zendframework/library/Zend/Form/Fieldset.php(631): Zend\Stdlib\Hydrator\ArraySerializable->extract(Object(BookList\Model\Book))
1 /var/www/html/zf2/vendor/zendframework/zendframework/library/Zend/Form/Form.php(942): Zend\Form\Fieldset->extract()
2 /var/www/html/zf2/vendor/zendframework/zendframework/library/Zend/Form/Form.php(303): Zend\Form\Form->extract()
3 /var/www/html/zf2/module/BookList/src/BookList/Controller/BookController.php(59): Zend\Form\Form->bind(Object(BookList\Model\Book))
The action method in my Controller that call bind:
public function editAction()
{
$id = (int) $this->params()->fromRoute('id', 0);
if (!$id) {
return $this->redirect()->toRoute('book');
}
try {
$book = $this->getBookTable()->getBook($id);
}
catch (\Exception $ex) {
return $this->redirect()->toRoute('book', array(
'action' => 'index'
));
}
$form = new BookForm();
$form->bind($book); // this is the line 59 of BookController
$form->get('submit')->setAttribute('value', 'Edit');
$request = $this->getRequest();
if ($request->isPost()) {
$form->setInputFilter($book->getInputFilter());
$form->setData($request->getPost());
if ($form->isValid()) {
$this->getBookTable()->saveBook($book);
// Redirect to list of books
return $this->redirect()->toRoute('book');
}
}
return array(
'id' => $id,
'form' => $form,
);
}
I checked also the BookTable class to see the object returned from the resulset and it's an istance of Book.
Than I opened the ArratSerializable.php and check the object passed and tre response is:
BookList\Model\Book Object ( [id] => 5 [author] => Gotye [title] => Making Mirrors [inputFilter:protected] => )
So it's a correct object, why doesn't it work?

Answer 1

How the result is returned you generally tell that to the ResultSet object while building your model. You actually set a prototype there for returning your result set saying, hey! "Use this prototype" which is, in your case, Book model. It does have a method called getArrayCopy() which is missing. That actually rises error in this case. So please add this to the Book model thus
class Book
{
// other properties and methods should be here
// add this method here
public function getArrayCopy()
{
return get_object_vars($this);
}
}