[TYPO3-project-formidable] renderlet:CHECKSINGLE only works one way

[Till Janetzki]

Hello Michael,
thank you for your fast answer!

I just added a line like

if (!($aData['FIELDNAME'])) $aData['FIELDNAME'] = 0;

in the <beforeInsertion> section of the datahandler and now it works 
just as intended.

In the long run will CHECKSINGLE adopt this kind of behaviour as it's 
default ? Because you need it for every editing form where you allow 
someone to change old (checkbox) values. While it´s not that time 
consuming to add an extra line per box, it's nice not to have to think 
about it :)

Best regards,
Till

> when the checkbox is not checked, the input does not sumbit 0, its simply 
> not submited