[TYPO3-project-formidable] Changing data before saving

[Oliver Klee]

Hi all,

using formidable 0.5.0 plus the REG validator, I have a text renderlet
which looks like this:

<renderlet:TEXT name="price_regular">
	<label>LLL:EXT:seminars/locallang_db.php:tx_seminars_seminars.price_regular</label>
	<validators>
		<validator:PREG>
			<pattern>
				<value>/^[\d]*((\.|,)[\d]{1,2})?$/</value>
	
<message>LLL:EXT:seminars/pi1/locallang.php:message_noPriceNumber</message>
			</pattern>
		</validator:PREG>
	</validators>
</renderlet:TEXT>

As decimals can only be saved using "." as the decimal point, I'd like
to change all "," to "." before saving the data (e.g. using preg_replace).

How can I change the value before saving it to DB?

Thanks a lot in advance,


Oliver