ext_localconf.php

<?php

/**
 * $Id$
 */

if (!defined ("TYPO3_MODE")) 	{
    die ("Access denied.");
}

/**
* Register hooks in TCEmain:
*/

	// this hook is used to prevent saving of news or category records which have categories assigned that are not allowed for the current BE user.
	// The list of allowed categories can be set with 'tt_news_cat.allowedItems' in user/group TSconfig.
$GLOBALS ['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass']['tt_news'] = 'EXT:tt_news/lib/class.tx_ttnews_tcemain.php:tx_ttnews_tcemain';

	// this hook is used to prevent saving of a news record that has non-allowed categories assigned when a command is executed (modify,copy,move,delete...).
	// it checks if the record has an editlock. If true, nothing will not be saved.
$GLOBALS ['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processCmdmapClass']['tt_news'] = 'EXT:tt_news/lib/class.tx_ttnews_tcemain.php:tx_ttnews_tcemain_cmdmap';

$confArr = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['tt_news']);

// Page module hook
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['list_type_Info']['9']['tt_news'] = 'EXT:tt_news/lib/class.tx_ttnews_cms_layout.php:tx_ttnews_cms_layout->getExtensionSummary';

// Fix for template file name created with older versions
$TYPO3_CONF_VARS['SC_OPTIONS']['tce']['formevals']['tx_ttnews_templateeval'] = 'EXT:tt_news/lib/class.tx_ttnews_templateeval.php';

// register Ajax scripts
$TYPO3_CONF_VARS['FE']['eID_include']['tt_news'] = 'EXT:tt_news/pi/fe_index.php';

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::registerAjaxHandler (
	'txttnewsM1::expandCollapse',
	TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('tt_news').'mod1/index.php:tx_ttnews_module1->ajaxExpandCollapse',
	false
);
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::registerAjaxHandler (
	'txttnewsM1::loadList',
	TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('tt_news').'mod1/index.php:tx_ttnews_module1->ajaxLoadList',
	false
);

if (!is_array($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['tt_news_cache'])) {
	$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['tt_news_cache'] = array(
		'backend' => 'TYPO3\\CMS\\Core\\Cache\\Backend\\Typo3DatabaseBackend',
		'frontend' => 'TYPO3\\CMS\\Core\\Cache\\Frontend\\VariableFrontend',
	);
}

// register news cache table for "clear all caches"
if ($confArr['cachingMode']=='normal') {
	$GLOBALS ['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearAllCache_additionalTables']['tt_news_cache'] = 'tt_news_cache';
}

// in order to make "direct Preview links" for tt_news work again in TYPO3 >= 6, unset pageNotFoundOnCHashError if a BE_USER is logged in
$configuredCookieName = trim($GLOBALS['TYPO3_CONF_VARS']['BE']['cookieName']);
if (empty($configuredCookieName)) {
	$configuredCookieName = 'be_typo_user';
}
if ($_COOKIE[$configuredCookieName]) {
	$GLOBALS['TYPO3_CONF_VARS']['FE']['pageNotFoundOnCHashError'] = 0;
}

$GLOBALS['TYPO3_CONF_VARS']['SYS']['formEngine']['formDataGroup']['tcaDatabaseRecord']['tx_ttnews_record_init_new'] = array(
	'depends' => array(
		\TYPO3\CMS\Backend\Form\FormDataProvider\DatabaseRowInitializeNew::class,
	)
);