Question

$score = new Zend_Form_Element_Radio('score');
$score->setRequired(true)
    ->setSeparator('')
    ->setMultiOptions(array(1 =>'Positive', -1 =>'Negative'))
    ->setDecorators(array('ViewHelper'));

Renders as

<label for="score-1">
    <input name="score" id="score-1" value="1" checked="checked" type="radio">Positive
</label>
<label for="score-1">
    <input name="score" id="score-1" value="-1" type="radio">Negative
</label>

Is the fact that it’s using the same ID for the inputs and labels normal behavior or a bug?
How can I correct this?
I can’t change the values as technically they are required to be that way

The real problem this causes is that when you click the negative the positive gets selected instead!
Thanks

Answer 1

Looks like the standard ViewHelper decorator for a radio control uses a FormRadio view-helper. When this view helper creates the id it uses on the <input> element and the <label> element, it first applies the standard AlNum filter, which is filtering out your minus sign.

So, it looks to me that instead of using the standard ViewRenderer decorator, you will have to create a custom decorator that calls your own custom FormRadio view helper.

You might be able to avoid creating your own decorators and view helpers by creating your own custom AlNum filter that allows those minus signs. The trick is to set that path only for this single use so that you;ll be able to use the normal Alnum filter for other elements.

Alternatively, you could probably trick the ViewHelper into using a custom FormRadio helper by adding a helper path on the view object so that it loads your custom view helper instead of the standard one.

Just some ideas.