TYPO3 Core

When you manually create a select field in Fluid and try to set/unset the selected attribute using the OptionViewHelper, the selected attribute will always be added to the HTML output.

The attribute is defined as boolean, thus I would expect, that selected="0" would result in the option not to being rendered with the selected attribute. But when I set the attribute as shown below, the selected attribute is rendered to the option tag.

Example:

<f:form.select id="mySelect" name="mySelect">
  <f:form.select.option value="0" selected="0">Option1</f:form.select.option>
  <f:form.select.option value="1" selected="1">Option2</f:form.select.option>
  <f:form.select.option value="2" selected="0">Option3</f:form.select.option>
</f:form.select>

I would expect, that only the 2nd option should be rendered with the selected attribute and all others not, but the output is as following:

<select id="mySelect" name="tx_ext_plugin[mySelect]">
  <option value="0" selected="">Option1</option>
  <option value="1" selected="1">Option2</option>
  <option value="2" selected="">Option3</option>
</select>

This results in the 3rd option to be selected, since it is the last option-tag with the selected attribute.

You can also set the selected attribute to an empty value, which also results in the selected attribute being rendered, so the attribute can currently not be used, since when you set it to any value (even an empty string), the selected attribute will always be rendered to the option tag.

I suggest, that if the selected attribute is given to the OptionViewHelper, it should render the attribute depending on the boolean value of the attribute.