在MySQL数据库中，我正在为IPv4 / IPv6地址存储VARBINARY（16）。为了在表单上显示，我创建了一个DataTransformer，以便使用内置的 inet_pton 和 inet_ntop 函数。
我想在Datatable中显示它，因此可以通过IP地址进行搜索。不幸的是，通过使用我的典型数据表设置，我得到500个服务器错误。
通过使用浏览器开发人员工具，我能够确定AJAX调用的结果是获取部分数据，实际的IP地址是作为资源而不是真实数据列出的。
错误说明：无法规范意外值：NULL
在堆栈跟踪中，我看到：
at Serializer ->normalize (resource, 'json', array())
in vendor/symfony/symfony/src/Symfony/Component/Serializer/Serializer.php at line 152
at Serializer ->normalize (array('id' => '5', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))), 'json', array())
in vendor/symfony/symfony/src/Symfony/Component/Serializer/Serializer.php at line 152
at Serializer ->normalize (array(array('id' => '5', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))), array('id' => '6', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true)))), 'json', array())
in vendor/symfony/symfony/src/Symfony/Component/Serializer/Serializer.php at line 152
at Serializer ->normalize (array('draw' => '1', 'recordsTotal' => '2', 'recordsFiltered' => '2', 'data' => array(array('id' => '5', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))), array('id' => '6', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))))), 'json', array())
in vendor/symfony/symfony/src/Symfony/Component/Serializer/Serializer.php at line 115
at Serializer ->serialize (array('draw' => '1', 'recordsTotal' => '2', 'recordsFiltered' => '2', 'data' => array(array('id' => '5', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))), array('id' => '6', 'ipAddress' => resource, 'sg_datatables_editable' => array(false), 'sg_datatables_actions' => array(array('network_ipaddress_show' => true))))), 'json')
in vendor/sg/datatablesbundle/Sg/DatatablesBundle/Datatable/Data/DatatableQuery.php at line 743
看到JSON调用，我实现了JsonSerializable接口，但它似乎没有被这样拉动。
虽然可以选择将inet_pton或inet_ntop直接放在实体中，但我相信我会失去验证。
我可以实现哪些接口来允许Datatables拉取我的IPAddress实体，并正确显示IP地址？
请注意，数据不会从实体（VARBINARY）转换为数据表所需的可读字符串。堆栈跟踪显示它是“资源”。
已添加代码：
我的实体：
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use JsonSerializable;
/**
* @ORM\Table(name="ip_address")
*/
class IPAddress implements JsonSerializable
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var mixed
* @ORM\Column(name="ip_address", type="binary", length=16, nullable=false, unique=true)
*/
private $ipAddress;
/**
* Set IP Address
* @param mixed $ipAddress
* @return IPAddress
*/
public function setIpAddress($ipAddress)
{
$this->ipAddress = $ipAddress;
return $this;
}
/**
* Get IP Address
* @return mixed
*/
public function getIpAddress()
{
return $this->ipAddress;
}
public function jsonSerialize()
{
return array(
'ipAddress' => inet_pton($this->ipAddress),
);
}
Datatable类：
<?php
namespace AppBundle\Datatables;
use Sg\DatatablesBundle\Datatable\View\AbstractDatatableView;
use Sg\DatatablesBundle\Datatable\View\Style;
/**
* Class IPAddressDatatable
* @package AppBundle\Datatables
*/
class IPAddressDatatable extends AbstractDatatableView
{
/**
* {@inheritdoc}
*/
public function buildDatatable(array $options = array())
{
$this->features->set(array(
'auto_width' => true,
'defer_render' => false,
... other default features not listed ...
'delay' => 0,
'extensions' => array()
));
$this->ajax->set(array(
'url' => $this->router->generate('network_ipaddress_results'),
'type' => 'GET'
));
$this->options->set(array(
'display_start' => 0,
'defer_loading' => -1,
... other default options not listed ...
'use_integration_options' => false,
'force_dom' => false
));
$this->columnBuilder
->add('ipAddress', 'column', array(
'title' => 'IP Address',
'width' => '85%',
))
->add(null, 'action', array(
'title' => '',
'width' => '15%',
'actions' => array(
array(
'route' => 'network_ipaddress_show',
'route_parameters' => array(
'plan_id' => 'id'
),
'label' => $this->translator->trans('datatables.actions.show'),
'icon' => 'fi-eye icon-size-14',
'attributes' => array(
'rel' => 'tooltip',
'title' => $this->translator->trans('datatables.actions.show'),
'class' => 'tiny button',
'role' => 'button'
),
),
),
));
;
}
... getEntity and getName not shown for brevity ...
}
控制器（至少相关部分）：
/**
* Lists all IP Addresses.
*
* @Route("/", name="network_ipaddress_index")
* @Method("GET")
* @return IPAddressController
*/
public function indexAction()
{
$datatable = $this->get('app.datatable.ipaddress');
$datatable->buildDatatable();
return $this->render(':network:ipaddress_datatable.html.twig', array(
'datatable' => $datatable,
));
}
/**
* Returns a response, only used for datatables
*
* @Route("/results", name="network_ipaddress_results")
* @Method("GET")
* @return IPAddressController
*/
public function indexResultsAction()
{
$datatable = $this->get('app.datatable.ipaddress');
$datatable->buildDatatable();
// I believe that the entity data would have to be translated here into printable a format
$query = $this->get('sg_datatables.query')->getQueryFrom($datatable);
return $query->getResponse();
}
答案 0 :(得分：0)
事实证明，stwe/DatatablesBundle中有一个关闭可用的预渲染。
所以，上面的Datatables类中需要的函数：
/**
* {@inheritdoc}
*/
public function getLineFormatter()
{
$formatter = function($line){
$str = stream_get_contents($line['ipAddress']);
if( strlen( $str ) == 16 OR strlen( $str ) == 4 ){
$line['ipAddress'] = inet_ntop( pack( "A".strlen( $str ) , $str ) );
}
return $line;
};
return $formatter;
}