我正在尝试将验证器 RecordExists 添加到我的表单中,但收到错误“不存在数据库适配器”。如何将数据库适配器设置为此验证器?我使用骨架应用程序中的示例,我正在尝试执行类似的操作(是的,我知道 $dbAdapter 未定义:)我正在搜索如何将此变量更改为数据库适配器资源的解决方案):
namespace Album\Model;
use Zend\InputFilter\Factory as InputFactory; // <-- Add this import
use Zend\InputFilter\InputFilter; // <-- Add this import
use Zend\InputFilter\InputFilterAwareInterface; // <-- Add this import
use Zend\InputFilter\InputFilterInterface; // <-- Add this import
class Album implements InputFilterAwareInterface
{
public $id;
public $artist;
public $title;
protected $inputFilter; // <-- Add this variable
public function exchangeArray($data)
{
$this->id = (isset($data['id'])) ? $data['id'] : null;
$this->artist = (isset($data['artist'])) ? $data['artist'] : null;
$this->title = (isset($data['title'])) ? $data['title'] : null;
}
// Add content to this method:
public function setInputFilter(InputFilterInterface $inputFilter)
{
throw new \Exception("Not used");
}
public function getInputFilter()
{
if (!$this->inputFilter) {
$inputFilter = new InputFilter();
$factory = new InputFactory();
$inputFilter->add($factory->createInput(array(
'name' => 'id',
'required' => true,
'filters' => array(
array('name' => 'Int'),
),
'validators' => array(
array(
'name' => 'Db\RecordExists',
'options' => array(
'table' => 'album',
'field' => 'title',
'adapter' => $dbAdapter
),
),
),
)));
$this->inputFilter = $inputFilter;
}
return $this->inputFilter;
}
}
您可以创建“专辑/模型/专辑”工厂并将 dbAdapter 注入专辑模型。
'service_manager' => array(
'factories' => array(
'Application/Model/Album' => function($sm){
$dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
$album = new \Application\Model\Album();
$album->setDbAdapter($dbAdapter);
return $album;
},
),
),
现在我们必须实现 setDbAdapter 和 getDbAdapter 方法:
namespace Application\Model;
class Album
{
public $id;
public $artist;
public $title;
private $_dbAdapter;
public function exchangeArray($data)
{
$this->id = (isset($data['id'])) ? $data['id'] : null;
$this->artist = (isset($data['artist'])) ? $data['artist'] : null;
$this->title = (isset($data['title'])) ? $data['title'] : null;
}
public function setDbAdapter($dbAdapter) {
$this->_dbAdapter = $dbAdapter;
}
public function getDbAdapter() {
return $this->_dbAdapter;
}
}
您可以通过调用在输入过滤器中获取 dbAdapter$this->getDbAdapter();
请记住通过 ServiceLocator 在控制器中获取相册模型,否则 dbAdapter 将在您的模型中不可用。
$album = $this->getServiceLocator()->get('Application/Model/Album');
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