Typo3 自定义小部件视图助手

Question

我为一个扩展创建了一个自定义小部件viewhelper，该扩展在空的 typo3 8.7 安装中运行良好。但是当我使用相同的代码在所需的项目上使用它时，它会导致错误：

#1289422564: initiateSubRequest() can not be called if there is no valid controller extending TYPO3CMSFluidCoreWidgetAbstractWidgetController Got "NULL" in class ...

以前是否有人遇到过这样的错误，或者有人知道导致此类错误的原因吗？

<!-- This is the View List.html-->

{namespace Exhibitors = MyVendorNameMyExhibitorsViewHelpers}
<ul class="second_lvl">
<Exhibitors:widget.AtoZNav objects="{feUserData}" as="filteredExhibitors" property="company">
<Exhibitors:widget.sort objects="{filteredExhibitors}" as="sortedExhibitors" property="company">
<f:for each="{filteredExhibitors}" as="feUser">
<li class="navLink">
{feUser.company}<br />
{feUser.company}
{feUser.www}<br />
</li>
</f:for>
</Exhibitors:widget.sort>
</Exhibitors:widget.AtoZNav>
</ul>
<f:link.action action="show">show detail page</f:link.action>

---

<?php
/**
* This is the SortViewHelper
*/
namespace MyVendorNameMyExhibitorsViewHelpersWidget;

class SortViewHelper extends TYPO3CMSFluidCoreWidgetAbstractWidgetViewHelper
{
/**
* @param TYPO3CMSExtbasePersistenceQueryResultInterface $objects
* @param string $as
* @param string $property
* @return string
*/
public function render(TYPO3CMSExtbasePersistenceQueryResultInterface $objects, $as, $property)
{
return $this->initiateSubRequest();
}
}

---

<?php
/**
* This is the Sort Controller
*/
namespace MyVendorNameMyExhibitorsViewHelpersWidgetController;

class SortController extends TYPO3CMSFluidCoreWidgetAbstractWidgetController
{
/**
* @var TYPO3CMSExtbasePersistenceQueryResultInterface
*/
protected $objects;
public function initializeAction()
{
$this->objects = $this->widgetConfiguration['objects'];
}
/**
* @param mixed string $order
*/
public function indexAction($order = TYPO3CMSExtbasePersistenceQueryInterface::ORDER_DESCENDING)
{
$order = ($order == TYPO3CMSExtbasePersistenceQueryInterface::ORDER_ASCENDING) ? TYPO3CMSExtbasePersistenceQueryInterface::ORDER_DESCENDING : TYPO3CMSExtbasePersistenceQueryInterface::ORDER_ASCENDING;
$query = $this->objects->getQuery();
$query->setOrderings(array($this->widgetConfiguration['property'] => $order));
$modifiedObjects = $query->execute();
$this->view->assign('contentArguments', array($this->widgetConfiguration['as'] => $modifiedObjects));
$this->view->assign('order', $order);
}
}

---

<?php
/**
* This is AtoZNav ViewHelper
*/
namespace MyVendorNameMyExhibitorsViewHelpersWidget;
class AtoZNavViewHelper extends TYPO3CMSFluidCoreWidgetAbstractWidgetViewHelper
{
/**
* @param TYPO3CMSExtbasePersistenceQueryResultInterface $objects
* @param string $as
* @param string $property
* @return string
*/
public function render(TYPO3CMSExtbasePersistenceQueryResultInterface $objects, $as, $property)
{
return $this->initiateSubRequest();
}
}

---

<?php
/**
* This is the Controller
*/
namespace MyVendorNameMyExhibitorsViewHelpersWidgetController;

class AtoZNavController extends TYPO3CMSFluidCoreWidgetAbstractWidgetController
{
/**
* @var TYPO3CMSExtbasePersistenceQueryResultInterface
*/
protected $objects;
public function initializeAction()
{
$this->objects = $this->widgetConfiguration['objects'];
}
/**
* @param string $char
* @throws TYPO3CMSExtbasePersistenceExceptionInvalidQueryException
*/
public function indexAction($char = '%')
{
$query = $this->objects->getQuery();
$query->matching($query->like($this->widgetConfiguration['property'], $char . '%'));
$modifiedObjects = $query->execute();
$this->view->assign('contentArguments', array($this->widgetConfiguration['as'] => $modifiedObjects));
$this->view->assign('letters', range('A', 'Z'));
$this->view->assign('char', $char);
}
}

Answer 1

我遇到了同样的错误。您需要注入控制器，就像在流体分页小部件中一样。这部分在书中是缺失的。

<?php
/**
* This is the SortViewHelper
*/
namespace MyVendorNameMyExhibitorsViewHelpersWidget;

class SortViewHelper extends TYPO3CMSFluidCoreWidgetAbstractWidgetViewHelper
{
protected $controller;
/**
* @param Controller/SortController $controller
*/
public function injectSortController(ControllerSortController $controller)
{
$this->controller = $controller;
}
/**
* @param TYPO3CMSExtbasePersistenceQueryResultInterface $objects
* @param string $as
* @param string $property
* @return string
*/
public function render(TYPO3CMSExtbasePersistenceQueryResultInterface $objects, $as, $property)
{
return $this->initiateSubRequest();
}
}