我试图创建一个View Helper来注入"注入"我的layout.phtml的数据库值。它的结果是一个简单的字符串,但是当我调用一个表格网关时,它不会产生结果,也不会加载其他的html。
// Conversa / SRC /视图/助手/ Conversas.php
namespace Conversa\View\Helper;
use Conversa\Model\ConversaTable;
use Zend\View\Helper\AbstractHelper;
class Conversas extends AbstractHelper
{
protected $sm;
protected $mensagemTable;
protected $conversaTable;
public function __construct($sm)
{
$this->sm = $sm;
}
public function __invoke()
{
$id = $_SESSION['id_utilizador'];
//$conversas = $this->getConversaTable()->conversasUtilizadorAll($id);
//$conversaTable = new ConversaTable();
$c = $this->getConversaTable()->fetchAll(); // <-When I call this, it doesn't work anymore
$output = sprintf("I have seen 'The Jerk' %d time(s).", $this->conversaTable);
return htmlspecialchars($output, ENT_QUOTES, 'UTF-8');
}
public function getConversaTable()
{
if (!$this->conversaTable) {
$sm = $this->getServiceLocator();
$this->conversaTable = $sm->get('Conversa\Model\ConversaTable');
}
return $this->conversaTable;
}
public function getMensagemTable()
{
if (!$this->mensagemTable) {
$sm = $this->getServiceLocator();
$this->mensagemTable = $sm->get('Mensagem\Model\MensagemTable');
}
return $this->mensagemTable;
}
}
Module.php
public function getViewHelperConfig()
{
return array(
'factories' => array(
'conversas' => function ($sm) {
$helper = new View\Helper\Conversas;
return $helper;
}
)
);
}
答案 0 :(得分:1)
由于您没有包含有关发生了什么的任何信息(错误消息?),因此您的视图助手工厂看起来不正确,因此此处不多。您的视图辅助构造函数方法具有Service Manager的必需参数,因此您需要传递:
public function getViewHelperConfig()
{
return array(
'factories' => array(
'conversas' => function ($sm) {
$helper = new View\Helper\Conversas($sm);
return $helper;
}
)
);
}
此外,由于您的视图助手需要conversaTable
,因此最好将其传递给视图助手而不是服务管理器(因为您在ZF3中删除了您所依赖的服务定位器功能)。 / p>