TYPO3更改指定的tt_news类别中的元值

Question

I have a question about tt_news and SEO. I would like to change some meta value in news from specified category. I try with this code but it didn't work:

[globalVar = GP:tx_ttnews|tt_news > 0] && [globalVar = GP:tx_ttnews|cat = 13]
   page = PAGE
   page.meta.robots = noindex
[global]

Any suggestion?

Answer 1

The condition [globalVar = GP:param = foo] checks if $_GET or $_POST arrays (in this order) contains the param with value foo , but it soen't check the record for used categories, therefore you need to write custom condition ( reference ) into typo3conf/AdditionalConfiguration.php (mandatory location for TYPO3 6.x! in 4.x that would be common typo3conf/localconf_local.php ) which will check if there's param with single news and then will check tt_news_cat_mm table for relations between News and Category, ready to use sample is:

/** For ext:tt_news only! (not for ext:news) */
function user_ttNewsInCat($catUid) {
    $newsParams = \TYPO3\CMS\Core\Utility\GeneralUtility::_GP('tx_ttnews');

    // If news is in params then check categories, otherwise skip it
    if (!is_null($newsParams) && is_array($newsParams) && intval($newsParams['tt_news']) > 0) {
        $newsUid = intval($newsParams['tt_news']);
        $matchesInMM = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows('*', 'tt_news_cat_mm', "uid_local={$newsUid} AND uid_foreign={$catUid}");

        if (count($matchesInMM)>0) return TRUE;
    }

    return FALSE;
}

And its usage in typoscript is:

[userFunc = user_ttNewsInCat(13)]
  page.meta.robots = noindex
[end]