[Typo3-dev] Setting a checkbox to checked by default

[S. Teuber]

Hi,

I wonder if there's any way to define a checkbox as "checked" by default.
I defined an array of checkboxes in an extension like this:

ext_tables.php:
------------------- start --------------------
$tempColumns = Array (
	'tx_myext_ft1' => Array (		
		'exclude' => 1,		
		'label' => 'LLL:EXT:my_ext/locallang_db.php:pages.tx_myext_ft1',		
		'config' => Array (
			'type' => 'check',
			'cols' => 4,
			'items' => Array (
				Array('LLL:EXT:my_ext/locallang_db.php:pages.tx_myext_ft1.I.0', ''),
				Array('LLL:EXT:my_ext/locallang_db.php:pages.tx_myext_ft1.I.1', ''),
				Array('LLL:EXT:my_ext/locallang_db.php:pages.tx_myext_ft1.I.2', ''),
			),
		)
	),
);

t3lib_div::loadTCA('pages');
t3lib_extMgm::addTCAcolumns('pages', $tempColumns, 1);

t3lib_extMgm::addToAllTCAtypes('pages', 'tx_myext_ft1');
------------------- stop ---------------------

Now I want one or all of these checkboxed to be checked by default, i.e. 
if a new page record is created. I already tried to set the default-value 
for the field in the database to "7" (all checked), but this didn't work.

Does anybody now if and how this is possible?

Sven