TYPO3 & tx_news 需要 ViewHelper 来显示类别中实体的数量

TYPO3 & tx_news need ViewHelper for show count of Entities in category

任务:在类别菜单中显示每个类别中的项目数,例如

我按 $demand 进行了尝试计数,但没有成功

<?php
    namespace HIT\huskytheme\ViewHelpers\News;

    class CountCategoriesViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {

        /**
         * @var \GeorgRinger\News\Domain\Repository\NewsRepository
         * @inject
         */
        protected $newsRepository = null;

        /**
         * 
         * @param string $category
         * @return string
         */
        public function render($category) {

            $demand = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('GeorgRinger\News\Domain\Model\Dto\NewsDemand');
            //$demand->setDateField('datetime');

            $demand->setStoragePage(10, true);

            // for example by id = 2
            $demand->setCategories(2);

            $demand->setCategoryConjunction('and');
            $demand->setIncludeSubCategories('1');
            //$demand->setArchiveRestriction($settings['archiveRestriction']);

            $statistics = $this->newsRepository->countByCategories($demand);
            \TYPO3\CMS\Core\Utility\DebugUtility::debug($statistics);

            return $this->newsRepository->countByCategories($demand); 

        }

    }

但如果调用

,则只得到 0
{namespace s=HIT\huskytheme\ViewHelpers} 
{s:news.countCategories(category: 2)}

没有方法 countByCategories 可以实现需求对象之类的东西。请直接调用数据库。

根据类别的数量和在未缓存页面上显示此菜单的需要,我建议不要使用视图助手方式,而是直接在控制器中查询数据库(如 Georg 所建议的)。只需连接您的插槽即可发出信号 GeorgRinger\News\Controller\CategoryController : listAction。您将在那里获得所有类别(在参数 categories 中)并且可以启动

SELECT COUNT(*) FROM sys_category_record_mm … GROUP BY uid_local

一次获取所有计数。然后只需向数组中添加一个新键 return 并以该名称在模板中使用它。

实际上我找到了获取类别中新闻数量的方法。谢谢Georg Ringer and undko

我的视图助手

<?php

namespace HIT\huskytheme\ViewHelpers\News;

class CountCategoriesViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {

    /**
     * @var \GeorgRinger\News\Domain\Repository\NewsRepository
     * @inject
     */
    protected $newsRepository = null;


    /**
     * 
     * @param \GeorgRinger\News\Domain\Model\Category $category
     * @return string
     */
    public function render($category) {
        /* @var $demand \GeorgRinger\News\Domain\Model\Dto\NewsDemand */
        $demand = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\GeorgRinger\News\Domain\Model\Dto\NewsDemand::class);

        $demand->setCategories(array($category));
        $demand->setCategoryConjunction('and');
        $demand->setIncludeSubCategories(false);

        return count($this->newsRepository->findDemanded($demand));
    }
}

在我的 tx_news Templates/Category/List.html

<!-- load my ViewHelper -->
{namespace s=HIT\huskytheme\ViewHelpers} 

并在此处添加计数

...
                            <f:link.page title="{category.item.title}" class="current-item" pageUid="{settings.listPid}"
                                         additionalParams="{tx_news_pi1:{overwriteDemand:{categories: category.item.uid}}}">{category.item.title}
                                <span class="postnum">({s:news.countCategories(category: category.item)})</span>
                            </f:link.page>
...