RE: [Wicket-user] Border and markup inheritance problem

Jerry Smith Fri, 19 May 2006 12:11:16 -0700

Thanks for the reply Igor! I’ll try the methods you mentioned. You also said markup inheritance is a better fit for this use case, could demonstrate how you would do this? I thought I was using markup inheritance, but it appears I don’t fully understand how to set it up correctly. Thanks!

-Jerry

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Igor Vaynberg
Sent: Friday, May 19, 2006 2:03 PM
To: wicket-user@lists.sourceforge.net
Subject: Re: [Wicket-user] Border and markup inheritance problem

if you look at the hierarchy of your message label it is like this:

in java:

page->message

in markup:

page->border->message

so when wicket tries to render message in the markup it cannot find it because it expects it to be in the border, but in fact you have added it to the page itself in extendpage.

so what you should do is either someting like this

ExtendPage() { getBorder().add(message); } to put it in the right place

or

BasPage() { add(new MyBorder("blah").setTransparentResolver(true); } this will tell wicket that the border is transparent - if component inside border cannot be found wicket should try to locate it in the border's parent

or use markup inheritance which is a much much better fit for this usecase

-Igor

On 5/19/06, Jerry Smith < [EMAIL PROTECTED]> wrote:

Sorry to send this again, I know you're all very busy trying to get the 1.2 release together, but I didn't want this to fall through the cracks if it is a bug.

I'm get a "WicketMessage: Unable to find component with id 'message'"

error. Maybe this can't be done or I'm doing it wrong using 1.2rc4, but what I'm working with is a MyBorder component, a BasePage, and ExtendPage. Here's the distilled code bits:

MyBorder.html:

<wicket:border>

<div wicket:id="header">[header]</div>

<div>

<wicket:body/>

</div>

<div wicket:id="footer">[footer]</div> </wicket:border>

MyBorder.java:

public class MyBorder extends Border {

public MyBorder(String id) {

super(id);

add(new Label("header", new Model("Border Header")));

add(new Label("footer", new Model("Border Footer")));

}

BasePage.html

<html>

<body>

<wicket:child/>

</div>

</body>

</html>

BasePage.java

public class BasePage extends WebPage {

public BasePage() {

add(new MyBorder("border"));

}

ExtendPage.html:

<wicket:extend>

<span wicket:id="message">[message]</span>

</wicket:extend>

ExtendPage.java:

public class ExtendPage extends BasePage {

public ExtendPage() {

super();

add(new Label("message", new Model("Extended message")));

}

Here's the error output minus stack:

<html>

<head>

</head>

<body>

<wicket:child><wicket:extend>

<span wicket:id="message">[message]</span>

</wicket:extend></wicket:child>

</div>

</body>

</html>

[Page class = ExtendPage, id = 4]:

# Path Size Type Model Object

1 _<body> 2.7K wicket.markup.html.internal.HtmlBodyContainer

2 _header 473 bytes wicket.markup.html.internal.HtmlHeaderContainer

3 border 1.3K com.ses.wicket.components.test.x.MyBorder

4 border:_child 485 bytes wicket.markup.html.WebMarkupContainer

5 border:_child:_extend 456 bytes wicket.markup.html.WebMarkupContainer

6 border:footer 456 bytes wicket.markup.html.basic.Label Border Footer

7 border:header 456 bytes wicket.markup.html.basic.Label Border Header

8 message 460 bytes wicket.markup.html.basic.Label Extended message

From this it looks like the "message" Label isn't being added to the correct component(border:_child:_extend?), am I doing something wrong, or is this a bug?

Thanks for any input!

-Jerry

RE: [Wicket-user] Border and markup inheritance problem

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