Preset checked state of h:selectOneRadio with passthrough elements - jsf

Question

I am trying to implement the solution described in
<h:selectOneRadio> renders table element, how to avoid this?
<div class="form-group">
<h:outputLabel styleClass="control-label"
value="#{msgClient.legalPersonality} " />
Selected value : <h:outputText value="#{msgClient['legalPersonality.' += clientBean.clientDto.legalPersonality.label]}" />
<div>
<f:metadata>
<f:viewParam name="legalPersonality" value="#{clientBean.clientDto.legalPersonality}" />
</f:metadata>
<ui:repeat var="legalPersonality" value="#{clientBean.legalPersonalities}">
<label class="radio-inline">
<input type="radio" jsf:id="legal" pt:name="legalPersonality" value="#{legalPersonality}">
<f:ajax execute="#this" render="#form" />
</input>
<h:outputText value="#{msgClient['legalPersonality.' += legalPersonality.label]}" />
</label>
</ui:repeat>
</div>
</div>
Everything seems to work fine, the selected value is correctly updated with the f:ajax component (setter is called with the correct value) BUT radio buttons are never checked. I mean it is checked when I click on it but it goes unchecked immediatly after. Even at page load, with a default value in clientDto.legalPersonality, everything is unchecked.
How it looks like : http://oi58.tinypic.com/242788g.jpg
Any help will be greatly appreciated. Thank you.

Answer 1

Indeed, the example in the question you found was a bit too oversimplified. It was missing the checked attribute which is necessary in order to preset the current selection on page load and/or after ajax render as in your case. In HTML, the checked state of a radio button is achieved by setting the checked attribute.
You can use <f:passThroughAttribute> to set the checked attribute, whereby you make sure that you set #{null} in unchecked case, so that it wouldn't render the checked attribute at all. It's namely a minimized attribute; even if we used checked="false", HTML would still consider it checked.
<input type="radio" jsf:id="legal" pt:name="legalPersonality" value="#{legalPersonality}">
<f:passThroughAttribute name="checked" value="#{legalPersonality eq clientBean.clientDto.legalPersonality ? 'checked' : null}" />
<f:ajax execute="#this" render="#form" />
</input>
The example in the question you found has in the meanwhile been updated. Thanks!