How to use TYPO3 Fluid f:form.select with option groups?

Question

I have a select field in a Fluid template with a lot of options that I need to organise into groups.

I see that I can do this with <f:form.select.optgroup>, but is there a way to to use the f:form.select options parameter to do this in a much tidier way?

I would expect something like:

<f:form.select
    options="{
        value1: 'Value 1',
        value2: 'Value 2',
        value3: 'Value 3',
        {
            'My Group':
            {
                value4: 'Value 4',
                value5: 'Value 5',
                value6: 'Value 6',
            }
        }
    }
/>

Answer 1

You need to use the option viewhelper within the form.select body as children:

<f:form.select name="myproperty">
   <f:form.select.option value="1">Option one</f:form.select.option>
   <f:form.select.option value="2">Option two</f:form.select.option>
   <f:form.select.optgroup>
      <f:form.select.option value="3">Grouped option one</f:form.select.option>
      <f:form.select.option value="4">Grouped option twi</f:form.select.option>
   </f:form.select.optgroup>
</f:form.select>

See https://docs.typo3.org/other/typo3/view-helper-reference/11.5/en-us/typo3/fluid/latest/Form/Select.html

Newer versions lacks the example as they are rendered form source code nower days. I guess that example may be back in the future.