ZF2 tablegateway on select shows error "unknown column" - zend-framework2

Question

Title says it.
It says that i dont have a columnd 'user_id' but i have. It works with 'id'.
This is the problem function :
public function getUploadsByUserId($userId)
{
$userId = (int) $userId;
$rowset = $this->tableGateway->select(
array('user_id' => $userId));
return $rowset;
}
This is the model:
namespace Users\Model;
use Zend\View\Model\ConsoleModel;
class Upload
{
public $id;
public $filename;
public $label;
public $user_id;
public function getArrayCopy()
{
return get_object_vars($this);
}
function exchangeArray($data)
{
$this->id = (isset($data['id'])) ? $data['id'] : null;
$this->filename = (isset($data['filename'])) ? $data['filename'] : null;
$this->label = (isset($data['label'])) ? $data['label'] : null;
$this->user_id = (isset($data['user_id'])) ? $data['user_id'] : null;
}
}
Where can be the problem here, its clearly that i have such column.

Answer 1

The problem was that i was not configured the tablegateway correctly. It was 'user' instead of 'uploads' .
'UploadTableGateway' => function ($sm) {
$dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
$resultSetPrototype = new ResultSet();
$resultSetPrototype->setArrayObjectPrototype(new Upload());
return new TableGateway('uploads', $dbAdapter, null,
$resultSetPrototype);
},