Manipulate TCA-values with itemsProcFunc

Example: Manipulate TCA for a given field with conditions

• Conditions are only when startPid is true and colpos = 2 or 3 or 4
• field is tt_content.layout

In Configuration/TCA/Overrides/tt_content.php add itemsProcFunc to TCA:

 

$GLOBALS['TCA']['tt_content']['columns']['layout']['config']['itemsProcFunc'] = \Vender\Name\Tca\LayoutOptions::class . '->filterOptions';

 

In Vender\Name\Tca\LayoutOptions.php:

 

<?php

declare(strict_types=1);

    namespace Vendor\Name\Tca;

    use TYPO3\CMS\Core\Utility\GeneralUtility;
    use TYPO3\CMS\Core\Configuration\TypoScript\TypoScriptService;
    use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
    class LayoutOptions {

        private int $startPid = 1;

        public function __construct() {
            $this->startPid = $this->getTypoScriptConstant('site.startPid', $this->startPid);
        }

        public function filterOptions(array &$config) {

            // Get TypoScript constant for start page PID
            $startPid = $this->getTypoScriptConstant('site.startPid', 1); // Default to 1 if not found

            $currentPageUid = (int)$config['row']['pid'];
            $currentColPos = (int)($config['row']['colPos'] ?? 0);

            // Set your Startpage UID and colPos
            if ($currentPageUid === 1 && ($currentColPos === 2 || $currentColPos === 3 || $currentColPos === 4)) {
                $config['items'] = [
                    ['kein Icon', 0],
                    ['University', 1],
                    ['Home',2],
                    ['Check square',3],
                ];
            }
        }

        private function getTypoScriptConstant(string $constant, int $defaultValue): int
        {
            if (isset($GLOBALS['TSFE']) && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController) {
                $typoScriptService = GeneralUtility::makeInstance(TypoScriptService::class);
                $typoScriptArray = $typoScriptService->convertTypoScriptArrayToPlainArray($GLOBALS['TSFE']->tmpl->setup);

                return isset($typoScriptArray[$constant]) ? (int)$typoScriptArray[$constant] : $defaultValue;
            }
            return $defaultValue;
        }
    }

In Fluid

There are four values concerning the field layout:

 

<f:variable name="icon1" value="fa fa-home fa-hidden" />
<f:switch expression="{info1.layout}">
    <f:case value="1">
        <f:variable name="icon1" value="fa fa-university" />
    </f:case>
    <f:case value="2">
        <f:variable name="icon1" value="fa fa-home" />
    </f:case>
    <f:case value="3">
        <f:variable name="icon1" value="fa fa-check-square-o" />
    </f:case>
</f:switch>