In TypoScript, you can check for a setting in page details:
if.isTrue.data = page:tx_myext_siblingsnav
In my case, to display a submenu.
But now I would like to check if this setting exists on the parent page (no "slide").
if.isTrue.data = levelfield:-2,page:tx_myext_siblingsnav
Wouldn't work.
How do I do that?
if.isTrue.data = levelfield:-2,tx_myext_siblingsnav
and in AdditionalConfiguration.php:
$GLOBALS['TYPO3_CONF_VARS']['FE']['addRootLineFields'] = 'tx_myext_siblingsnav';
(I thought the rootlinefields had to be added only for "slide", but no.)