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Moderators: martimiz, Sean, Ed, biapar, Willr, Ingo, swaiba

Form with readonly-fields overwriting existing values

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3 Posts   1901 Views


Community Member, 44 Posts

14 March 2013 at 12:14am

HI all,

Hope someone can point me in the right direction with this problem. I have set up some forms in my front end to add/edit dataobjects. The idea is that with "add" all from fields are editable and with an "edit" only certain fields are editable. When I set some of the fields in the edit form to readonly, those fields get set to NULL/0 after the dataobject->write()... That is incorrect, they should be left alone and keep their original (add) value. This used to work in SS 2.* but readonly's get changed to 0/NULL when I upgraded to 3.

I have a form set up, the standard way:

public function EditForm() {			
		$fields = $this->currentRecord->getFrontendFields($this->request->param('OtherID'));		
		$validator = ($this->currentRecord->hasMethod('getValidator')) ? $this->currentRecord->getValidator() : new RequiredFields();
		$actions = new FieldList(
			new FormAction("doEdit", 'Opslaan')
		$form = new Form($this, "EditForm", $fields, $actions, $validator);
		return $form;

with a form handler:

function doEdit($data, $form, $request) {
		return "#".$CSSClassName.$this->currentRecord->ID;

When I add a dataobject, all form fields are editable. When a dataobject is edited, only certain fields can be changed. I handle that in the getFrontEndFields of the dataobject. Ie:

function getFrontendFields($actionGroup='edit') {
	$VerbruikKwhUrenHoog = new TextField('Verbruik Kwh Uren Hoog','Verbruik Kwh uren hoog(T1)');
	$VerbruikKwhUrenLaag = new TextField('Verbruik Kwh Uren Laag','Verbruik Kwh uren laag (T1)');
	if( !empty($this->ID) ){
		$VerbruikKwhUrenLaag = $VerbruikKwhUrenLaag->performReadonlyTransformation();	
	return new FieldList(
		new FieldGroup(

Now after the $this->currentRecord->write() in the doEdit method all the readonly fields are set to 0/NULL. Is this expected behaviour since SS3? Or am I missing something?


Forum Moderator, 5523 Posts

20 March 2013 at 8:39pm

Sounds like a 'feature' that wasn't documented in 2.* and has been removed. If a field is a Readonly field it shouldn't update the object. Perhaps raise a ticket to


Community Member, 44 Posts

19 April 2013 at 8:51am

Hmmm... I was afraid of that. Let me find a clean test-case and possibly raise a ticket.