I have a custom form and in previous versions of SS if i added something like this:

Textfield::create('MyField', 'MyField')->addExtraClass('small-field')

It would add the extra class to both the input and the div holding it. Now it just adds it to the input, so I get something like:

<div class="fieldgroup-field odd">
  <div class="fieldholder-small">
  <label class="fieldholder-small-label" for="Form_MyForm_MyField">My Field</label>
  <input type="text" name="MyField" class="text small-field" id="Form_MyForm_MyField" >
  </div>
</div>

How do I get it to add the class to the first div (fieldgroup-field)?

Thanks

I usually use a custom form template for this. Copy "framework/templates/Includes/Form.ss" to your project folder and rename it to MyForm.ss and instead of looping through the FormFields, manually add them.

$form = new Form();
$form->setTemplate('MyForm');
return $form;

// MyForm.ss
<fieldset>
	<div id="MyField" class="field myCssClass">
		<div class="anotherCssClass">
			<label class="left evenAnotherCssClass" for="{$FormName}_MyField">$Fields.dataFieldByName(MyField).Title</label>
			<div class="middleColumn myCssClass">$Fields.dataFieldByName(MyField)</div>
		</div>
	</div>
	<div class="clear"><!-- --></div>
</fieldset>