Radio component throws an exception when used with RadioGroup and Label
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Key: TAPESTRY-1709
URL: https://issues.apache.org/jira/browse/TAPESTRY-1709
Project: Tapestry
Issue Type: Bug
Components: tapestry-core
Affects Versions: 5.0.5
Reporter: Nick Westgate
Example code that breaks:
<t:RadioGroup t:id="group1">
<t:Radio t:id="radio1" t:value="value1"/><t:Label for="radio1"/>
</t:RadioGroup>
Exception is:
No object of type org.apache.tapestry.RadioContainer is available from the
Environment.
The reason is that the Label validation rendering calls Radio.getElementName()
after the RadioGroup has been popped from the environment.
A simple fix is to cache the element name:
private String _elementName;
...
public String getElementName()
{
return _elementName;
}
...
void beginRender(MarkupWriter writer)
{
...
_elementName = _container.getElementName();
writer.element("input", "type", "radio", "id", _clientId, "name",
_elementName, "value", value);
...
}
Cheers,
Nick.
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