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在 tx_news 记录的详细视图中，我循环选择的类别，如果记录具有特定类别（在本例中为 uid=5），则加载具有定义的 uid 的过滤列表视图（相关记录）。如果选择了多个类别，它也可以工作，但前提是选择的其他类别具有更高的“排序”值。我错过了什么？这是我的设置：

新闻/Detail.html

...

<!-- check category -->         
<f:if condition="{newsItem.categories}">
    <f:for each="{newsItem.categories}" as="category">
        <f:if condition="{category.uid} == 5">
            <f:then>                

                <f:cObject typoscriptObjectPath="lib.newsslider" />                         

            </f:then>            
        </f:if>
    </f:for>                
</f:if>

...

排版：

lib.newsslider = USER
lib.newsslider {
  userFunc = TYPO3\CMS\Extbase\Core\Bootstrap->run
  extensionName = News
  pluginName = Pi1
  vendorName = GeorgRinger

  switchableControllerActions {
        News {
          1 = list
        }
  }

  settings < plugin.tx_news.settings
  settings {
        categories = 5
        categoryConjunction = and
        includeSubCategories =1
        limit = 30
        detailPid = 97
        overrideFlexformSettingsIfEmpty := addToList(detailPid)
        startingpoint = 96
        templateLayout = 4
        hidePagination = 1
        list{  
          paginate {
            itemsPerPage = 9
            insertAbove = 
          }  
       }         
  }
}

如果选择的其他类别具有较低的“排序”值......例如像这样：

categories => protectedTYPO3\CMS\Extbase\Persistence\Generic\LazyObjectStorageprototypeobject (2 items)
  00000000443eb767000000007f371fa2 => GeorgRinger\News\Domain\Model\Categoryprototypepersistent entity (uid=19, pid=1)
     sorting => protected 8 (integer)
     title => protected 'Corporates' (10 chars)
     uid => protected 19 (integer)

  00000000443eb763000000007f371fa2 => GeorgRinger\News\Domain\Model\Categoryprototypepersistent entity (uid=5, pid=56)
     sorting => protected 16 (integer)
     title => protected 'Press Releases' (14 chars)
     uid => protected 5 (integer)

当我想访问来自主 [17] Media & Press 列表视图的记录时，我无法访问记录详细信息页面（永远加载）......过了一会儿我收到了这个错误：

Uncaught TYPO3 Exception
An exception occurred while executing 'SELECT * FROM `sys_template` WHERE (`pid` = ?) AND ((`sys_template`.`deleted` = 0) AND (`sys_template`.`hidden` = 0) AND (`sys_template`.`starttime` <= 1509472200) AND ((`sys_template`.`endtime` = 0) OR (`sys_template`.`endtime` > 1509472200))) ORDER BY `root` DESC, `sorting` ASC LIMIT 1' with params [1]: PHP Warning: mysqli::prepare(): MySQL server has gone away in /is/htdocs/path/www/typo3_src-8.7.8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/MysqliStatement.php line 92

TYPO3 8.7.8 & tx_news 6.1.1

编辑：

...其中 pageID [97] 也是主要新闻列表视图的详细信息页面：[17] Media & Press：

[17] Media & Press
|_[97] News Articles
|_[96] News Archive

...配置为：

[17] Media & Press
- What to display: List View (without overloading Detail view)
- Starting Point: Media & Press (sys) [96]
- Category Selection: Press Releases, Weekly Update
- Category Mode: Show items with selected categories (OR)
- PageId for single news display: News Articles [97]
- PageId for list display: Media & Press [17]

[97] News Articles
- What to display: Detail View
- PageId to return to: [17] Media & Press
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