This document provides guidance for extension developers updating extensions for TYPO3 6.2. It includes a checklist of things to address like removing includes and using autoloading. It also lists "Do's" such as using signals/slots and old hook names staying the same. "Don'ts" are outlined like preventing database connections in autoloading and disabling backported property mapping. Overall the document offers best practices for updating extensions for TYPO3 6.2.

1. TYPO3 6.2 for extension developer
» Checklist
» Do‘s
» Don‘ts

2. CPS-IT Mehr Wert im Netz 1
About me
 Known as @IchHabRecht
 Nicole Cordes from Berlin
 Programmer since 1998
 Using TYPO3 since 2007
 Certified TYPO3 integrator since 2011
 Active contributer for TYPO3 CMS since 2013 (6.0)
 Member of security and PHPUnit team
 Working on multiple extensions as contributer

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Checklist
General
 Remove all include(), include_once(), require(), require_once()
 Use convention over configuration for autoloading
 Or at least an ext_autoload.php file
 Adapt xclasses
Backend
 Use „_DISPATCH“ as script configuration for backend modules
 BackendUtility::getModuleUrl() and BackendUtility::getAjaxUrl()

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Autoload
 Cache lookup
 Check for core file (namespace TYPO3CMS)
=> Class name reflects folder structure
 Check runtime cache
=> filled with information by loaded ext_autoload.php files
 Get file from class name („extbase convention“)

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XCLASS
$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects']['TYPO3CMSPermControllerPermissionModuleController'] = array(
'className' => 'Tx_BeAcl_Xclass_PermissionModuleController',
);
 GeneralUtility::makeInstance()
 Recursive dissolving

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Dispatch
Changeinconf.php
$MCONF['script']='_DISPATCH';
Remove inindex.php
unset($MCONF);
require_once('conf.php');
require_once($BACK_PATH . 'init.php');
require_once($BACK_PATH . 'template.php');

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Backend links
$url = TYPO3CMSBackendUtilityBackendUtility::getModuleUrl(
$moduleName,
$urlParameters = array(),
$backPathOverride = FALSE,
$returnAbsoluteUrl = FALSE
);

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Ajax links
Register your ajax script
TYPO3CMSCoreUtilityExtensionManagementUtility::registerAjaxHandler(
‘myAjaxId’,
‘MyVendormyExtensionPathToClass.php’
);
> Automatically published to TYPO3.settings.ajaxUrls[‘myAjaxId']
Use your ajax script
Ext.Ajax.request({
url: TYPO3.settings.ajaxUrls[‘myAjaxId']
});

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Do‘s
 Old class names still work due to class mapping
 Old hook names still the same
 Use signal / slots

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Connect function to signal
TYPO3CMSCoreUtilityGeneralUtility::makeInstance('TYPO3CMSExtbaseSignalSlot
Dispatcher')->connect(
‘SignalClassName',
‘SignalName’,
‘SlotClassNameOrObject',
‘SlotMethodName'
);
Use signal / slots
Find signal
 Function prefixed with “emit”
 Calls dispatch() function from
TYPO3CMSExtbaseSignalSlotDispatcher
> This way you can introduce own signals

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Don‘ts
General
 Prevent any logic in ext_autoload.php configuration (e.g. require
other files)
 No need for t3lib_div::loadTCA()
Eid scripts
 No need to connect to database by tslib_eidtools::connectDB()

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Don‘ts
Extbase
 Database driven object are only stored by calling the repository
functions or persisted manually by calling
$this->objectManager->get(
'TYPO3CMSExtbasePersistenceGenericPersistenceManager‚
)->persistAll();
 Disable the backport of the property mapper
plugin.tx_cpsblogexample.features.rewrittenPropertyMapper = 0
 New functions in
TYPO3CMSExtbasePersistenceGenericQuerySettingsInterface

13. CPS-IT Mehr Wert im Netz 12
Thank you
for your attention!
Contact:
@IchHabRecht
typo3.slack.com
typo3@cordes.co
cps-it.cordes