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Posted to user@struts.apache.org by bOOyah <bo...@nowhere.org> on 2004/04/22 02:31:31 UTC
ActionErrors in my JSP: how can I rewrite this RT snippet as EL?
Hi
I'm displaying validate() ActionErrors in my JSP using the RT
html:errors tag. But I can't seem to be able to successfully rewrite my
snippet of Struts RT in EL.
This works:
<%@ page import="org.apache.struts.Globals"%>
<%@ page import="org.apache.struts.action.ActionMessages"%>
...
<logic-rt:present name="<%=Globals.ERROR_KEY%>">
<html-rt:errors property="<%=ActionMessages.GLOBAL_MESSAGE%>"/>
</logic-rt:present>
But this doesn't work (using the logic & html EL taglibs):
<%@ page import="org.apache.struts.Globals"%>
<%@ page import="org.apache.struts.action.ActionMessages"%>
...
<logic:present name="org.apache.struts.Globals.ERROR_KEY">
<html:errors
property="org.apache.struts.action.ActionMessages.GLOBAL_MESSAGE"/>
</logic:present>
Can anyone help?
Thanks
--
bOOyah
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Re: ActionErrors in my JSP: how can I rewrite this RT snippet as EL?
Posted by Niall Pemberton <ni...@blueyonder.co.uk>.
Ha, ha - you have to stand firm mate ;-) - having said that if my wife says
"down tools" I do too - PDQ!
The ActionMessages class and <html:messages> tag are new versions which it
seems are there to replace ActionErrors and <html:errors> so I guess they
are the future. So far I haven't got round to moving over to them yet but
yes, essentially it does the same thing but in a slightly different way.
>From what I understand the <html:messages> tag differs in the following
ways:
* You specify an "id" attribute in <html:messages> which specifies a page
scope bean in which the tag will store the current message for each
iteration - I believe you then have to use something to write out the
message - like <bean:write>
* Using the message="true" will display messages stored under the
Globals.MESSAGE_KEY constant (rather than the default Globals.ERROR_KEY ) -
means you can use it for other messages as well as errors.
* <html:errors> uses the "errors.footer" and "errors.header" keys to get the
header/footer from the application resources - <html:messages> you can
specify these keys using "header" and "footer" attributes on the tag - means
you can have different header/footer for different pages.
So to do you're example I believe you would have to do the following:
<logic:messagesPresent>
<html:messages id="errorMsg" header="errors.header"
footer="errors.footer"
property="org.apache.struts.action.GLOBAL_MESSAGE">
<ul><bean:write name="errorMsg"/></ul>
</html:messages>
</logic:messagesPresent>
rather than
<logic:messagesPresent>
<html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
</logic:messagesPresent>
As I said, I haven't tried them out yet - maybe someone who uses them can
confirm whether this is correct or not.
Niall
----- Original Message -----
From: "bOOyah" <bo...@nowhere.org>
To: <us...@struts.apache.org>
Sent: Friday, April 23, 2004 12:49 PM
Subject: Re: ActionErrors in my JSP: how can I rewrite this RT snippet as
EL?
> Niall Pemberton wrote:
>
> > It should be
> >
> > <logic:present name="org.apache.struts.action.ERROR">
> > <html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
> > </logic:present>
> >
> > .. or even
> >
> > <logic:messagesPresent>
> > <html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
> > </logic:messagesPresent>
>
> Sorry for the delay in replying Niall...my wife MADE ME down tools for a
> day.
>
> Yes, indeed both your suggestions work perfectly. I'm using the 2nd
> one. Am I right then in guessing that
>
> <logic:messagesPresent>
> <html:messages property="org.apache.struts.action.GLOBAL_MESSAGE"/>
> </logic:messagesPresent>
>
> would display all messages (errors or otherwise)? Is it now that simple?
>
> What threw me originally is that 'org.apache.struts.action.ERROR' no
> longer exists in the online Struts javadocs. So I got embroiled in
> following the path of deprecation, and I couldn't get the current
> recommendations to work :-(
>
> Thanks a mill for your help.
>
> --
> bOOyah
>
>
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> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
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Re: ActionErrors in my JSP: how can I rewrite this RT snippet as
EL?
Posted by bOOyah <bo...@nowhere.org>.
Niall Pemberton wrote:
> It should be
>
> <logic:present name="org.apache.struts.action.ERROR">
> <html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
> </logic:present>
>
> .. or even
>
> <logic:messagesPresent>
> <html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
> </logic:messagesPresent>
Sorry for the delay in replying Niall...my wife MADE ME down tools for a
day.
Yes, indeed both your suggestions work perfectly. I'm using the 2nd
one. Am I right then in guessing that
<logic:messagesPresent>
<html:messages property="org.apache.struts.action.GLOBAL_MESSAGE"/>
</logic:messagesPresent>
would display all messages (errors or otherwise)? Is it now that simple?
What threw me originally is that 'org.apache.struts.action.ERROR' no
longer exists in the online Struts javadocs. So I got embroiled in
following the path of deprecation, and I couldn't get the current
recommendations to work :-(
Thanks a mill for your help.
--
bOOyah
---------------------------------------------------------------------
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Re: ActionErrors in my JSP: how can I rewrite this RT snippet as EL?
Posted by Niall Pemberton <ni...@blueyonder.co.uk>.
It should be
<logic:present name="org.apache.struts.action.ERROR">
<html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
</logic:present>
.. or even
<logic:messagesPresent>
<html:errors property="org.apache.struts.action.GLOBAL_MESSAGE"/>
</logic:messagesPresent>
----- Original Message -----
From: "bOOyah" <bo...@nowhere.org>
To: <us...@struts.apache.org>
Sent: Thursday, April 22, 2004 1:31 AM
Subject: ActionErrors in my JSP: how can I rewrite this RT snippet as EL?
> Hi
>
> I'm displaying validate() ActionErrors in my JSP using the RT
> html:errors tag. But I can't seem to be able to successfully rewrite my
> snippet of Struts RT in EL.
>
> This works:
>
> <%@ page import="org.apache.struts.Globals"%>
> <%@ page import="org.apache.struts.action.ActionMessages"%>
> ...
> <logic-rt:present name="<%=Globals.ERROR_KEY%>">
> <html-rt:errors property="<%=ActionMessages.GLOBAL_MESSAGE%>"/>
> </logic-rt:present>
>
>
> But this doesn't work (using the logic & html EL taglibs):
>
> <%@ page import="org.apache.struts.Globals"%>
> <%@ page import="org.apache.struts.action.ActionMessages"%>
> ...
> <logic:present name="org.apache.struts.Globals.ERROR_KEY">
> <html:errors
> property="org.apache.struts.action.ActionMessages.GLOBAL_MESSAGE"/>
> </logic:present>
>
>
>
> Can anyone help?
>
> Thanks
> --
> bOOyah
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
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