Pollable processing instructions¶
Some processing instructions are never executed on the "client side" (the TYPO3 frontend that is called by the crawler). This happens for example if a try to staticpub a page containing non-cacheable elements. That bad thing about this is, that staticpub doesn't have any chance to tell that something went wrong and why. That's why we introduced the "pollable processing instructions" feature. You can define in the ext_localconf.php file of your extension that this extension should be "pollable" bye adding following line:
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['crawler']['pollSuccess'] = 'tx_staticpub';
In this case the crawler expects the extension to tell if everything was ok actively, assuming that something went wrong (and displaying this in the log) is no "success message" was found.
In your extension than simple write your "ok" status by calling this:
$GLOBALS['TSFE']->applicationData['tx_crawler']['success']['tx_staticpub'] = true;