[jira] Reopened: (TAP5-290) Namespace error when partial-updating a zone with a block

["Hugo Palma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hugo Palma reopened TAP5-290:
-----------------------------


The namespace error is gone.

Still, the fix changes the the root tag from the original one to something like "<ns0:div>"
This can force the developer to change a lot of css definitions that are tied to the HTML tag and not only the css class.

I don't think the developer should have to change it's approach to the page css because of this.
Isn't there any other way you can do this without changing the root element tag ?

> Namespace error when partial-updating a zone with a block
> ---------------------------------------------------------
>
>                 Key: TAP5-290
>                 URL: https://issues.apache.org/jira/browse/TAP5-290
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.0.15
>            Reporter: Hugo Palma
>            Assignee: Howard M. Lewis Ship
>             Fix For: 5.0.16
>
>
> I have a zone that contains two components in its body that i'd like to update on a given event.
> Because i can't return more than one component to update from the event listener method i created a block inside the zone and outside the two components and now return the block from the event listener method. Something like this:
> <t:zone>
> <t:delegate to="myblock"/>
> <t:block>
> <t:component1>
> ...
> </t:component1>
> <t:component2>
> ...
> </t:component2>
> <div>whatever</div>
> </t:block>
> </t:zone>
> I use the delegate to because i want the block content to be visible when the whole page is rendered and not just after the update event.
> So, the page renders just fine. But, when the event is executed i get the following error logged and nothing is updated on the UI:
> [ERROR] TapestryModule.RequestExceptionHandler Processing of request failed with uncaught exception: Namespace prefix for URI 'http://www.w3.org/1999/xhtml' is not defined.
> java.lang.RuntimeException: Namespace prefix for URI 'http://www.w3.org/1999/xhtml' is not defined.
> at org.apache.tapestry5.dom.Element.toNamespacePrefix(Element.java:502)
> at org.apache.tapestry5.dom.Element.toNamespacePrefix(Element.java:504)
> at org.apache.tapestry5.dom.Element.toPrefixedName(Element.java:366)
> at org.apache.tapestry5.dom.Element.toMarkup(Element.java:300)
> at org.apache.tapestry5.dom.Node.toMarkup(Node.java:149)
> at org.apache.tapestry5.dom.Node.writeChildMarkup(Node.java:103)
> at org.apache.tapestry5.dom.Node.getChildMarkup(Node.java:113)
> at org.apache.tapestry5.internal.services.PageRenderQueueImpl.renderPartial(PageRenderQueueImpl.java:150)
> Although the block rendered fine the first time it seems to fail to render upon the partial-update. After some digging i found out that the only way that i could get this to work was to only include tapestry namespace tags inside the block. So if i have something like:
> <div>whatever</div>
> inside the block i get the error. But if i change it to:
> <t:any element="div">whatever</t:any>
> it works just fine.
> Again, the exact same block renders just fine when the page loads.

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