ext_localconf.php

<?php
if (!defined('TYPO3_MODE')) {
    die ('Access denied.');
}

$extConfiguration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf'][$_EXTKEY]);

// Save hook
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] =
	'EXT:' . $_EXTKEY . '/Classes/Hooks/tx_saveDce.php:tx_saveDce';

// ImpExp Hooks
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/impexp/class.tx_impexp.php']['before_setRelation'][] =
	'EXT:' . $_EXTKEY . '/Classes/Hooks/tx_dce_impexp.php:tx_dce_impexp->before_setRelation';
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/impexp/class.tx_impexp.php']['before_writeRecordsRecords'][] =
	'EXT:' . $_EXTKEY . '/Classes/Hooks/tx_dce_impexp.php:tx_dce_impexp->before_writeRecordsRecords';

// Ajax Calls
$GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['AJAX']['Dce::updateContentElement'] =
	'EXT:' . $_EXTKEY . '/Classes/Hooks/tx_update_contentelement.php:tx_update_contentelement->updateContentElement';

// User conditions
include_once(t3lib_extMgm::extPath('dce') . 'Classes/UserConditions/user_dceOnCurrentPage.php');

// Rendering hook of content elements in backend
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['tt_content_drawItem'][] =
	'EXT:dce/Classes/Hooks/tx_renderDceContentElement.php:tx_renderDceContentElement';

// Clear cache hook
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearCachePostProc'][] =
	'EXT:dce/Classes/Hooks/tx_clearCache.php:tx_clearCache->clearDceCache';

if (TYPO3_MODE === 'BE') {
	require_once(t3lib_extMgm::extPath($_EXTKEY).'Classes/UserFunction/class.tx_dce_codemirrorField.php');
	require_once(t3lib_extMgm::extPath($_EXTKEY) . 'Classes/UserFunction/class.tx_dce_dceFieldCustomLabel.php');
}

$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/template.php']['docHeaderButtonsHook'][] =
	'EXT:dce/Classes/Hooks/tx_docHeaderButtonsHook.php:tx_docHeaderButtonsHook->addQuickDcePopupButton';

// Special tce validators (eval)
include_once(t3lib_extMgm::extPath('dce') . 'Classes/UserFunction/class.tx_dce_abstract_formeval.php');
$TYPO3_CONF_VARS['SC_OPTIONS']['tce']['formevals']['tx_dce_formevals_lowerCamelCase'] = 'EXT:dce/Classes/UserFunction/class.tx_dce_formevals_lowerCamelCase.php';
$TYPO3_CONF_VARS['SC_OPTIONS']['tce']['formevals']['tx_dce_formevals_noLeadingNumber'] = 'EXT:dce/Classes/UserFunction/class.tx_dce_formevals_noLeadingNumber.php';

$GLOBALS['TYPO3_CONF_VARS']['USER']['dce']['dceLocalconfPath'] = PATH_typo3conf . 'temp_CACHED_dce_ext_localconf.php';
if (!file_exists($GLOBALS['TYPO3_CONF_VARS']['USER']['dce']['dceLocalconfPath'])) {
	/** @var $dceCache Tx_Dce_Cache */
	$dceCache = t3lib_div::makeInstance('Tx_Dce_Cache');
	$dceCache->createLocalconf($GLOBALS['TYPO3_CONF_VARS']['USER']['dce']['dceLocalconfPath']);
}
require_once($GLOBALS['TYPO3_CONF_VARS']['USER']['dce']['dceLocalconfPath']);
?>