T4: Message component, is there any?

[Joshua Jackson <jo...@gmail.com>]

Dear all,

Is there any Message component in T4 for displaying messages on pages
upon success or failed process? Or should I use Insert component
instead?

Thanks in advance.

-- 
It's not just about coding, it's a matter of fulfilling your core being

YM!: thejavafreak
Blog: http://joshuajava.wordpress.com/

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Re: T4: Message component, is there any?

[Geoff Callender <ge...@gmail.com>]

I don't know of one.  It's common to make your own, eg. ShowError.html:

<span jwcid="$content$">
	<span jwcid="@If"  
condition="ognl:page.beans.validationDelegate.hasErrors">
		<span class="error">
			<span jwcid="@Delegator"  
delegate="ognl:page.beans.validationDelegate.firstError">Error  
Message</span>
		</span>
	</span>
</span>

and perhaps a more generalised message component, eg. ShowMessages.html:

<span jwcid="$content$">
	<span jwcid="@If"  
condition="ognl:page.beans.validationDelegate.hasErrors">
		<span jwcid="@ShowError">--- Validation error message ---</span>
	</span>
	<span jwcid="@If" condition="ognl:page.warningMessage">
		<span jwcid="@Insert" value="ognl:page.warningMessage"  
class="warning">--- Warning message ---</span>
	</span>
	<span jwcid="@If" condition="ognl:page.infoMessage">
		<span jwcid="@Insert" value="ognl:page.infoMessage"  
class="info">--- Info message ---</span>
	</span>
</span>

Don't forget to create ShowError.jwc and ShowMessages.html, both of  
which would look like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE component-specification PUBLIC
   "-//Apache Software Foundation//Tapestry Specification 4.0//EN"
   "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd">
	
<component-specification allow-informal-parameters="no">
</component-specification>

BTW, getters and setters for warningMessage and infoMessage are  
typically put in a common superclass of your pages so that every page  
can use them.

HTH,

Geoff
http://files.doublenegative.com.au/jumpstart


On 05/10/2007, at 7:54 PM, Joshua Jackson wrote:

> Dear all,
>
> Is there any Message component in T4 for displaying messages on pages
> upon success or failed process? Or should I use Insert component
> instead?
>
> Thanks in advance.
>
> -- 
> It's not just about coding, it's a matter of fulfilling your core  
> being
>
> YM!: thejavafreak
> Blog: http://joshuajava.wordpress.com/
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>