user Digest 16 Apr 2008 15:34:19 -0000 Issue 7982

Topics (messages 185476 through 185499):

Re: Is it possible to make a pop up window using Struts?
 185476 by: Antonio Petrelli
 185477 by: ryan webb
 185479 by: Antonio Petrelli

[S2] Selecting value in radio elements
 185478 by: Ramanathan RV
 185480 by: Lukasz Lenart

action with dynamic parameter
 185481 by: Danieleippoliti\.libero\.it
 185482 by: Martin Gainty

tiles problem
 185483 by: Chris Pat
 185484 by: Antonio Petrelli
 185485 by: Chris Pat
 185486 by: Antonio Petrelli

Advantage of prepare()?
 185487 by: Michael Gagnon
 185490 by: Jukka Välimaa
 185491 by: Dave Newton

Re: Problem with Select tag
 185488 by: Milan Milanovic
 185489 by: Michael Gagnon
 185494 by: Milan Milanovic

dinamically parameters
 185492 by: Danieleippoliti\.libero\.it
 185496 by: Antonio Petrelli
 185497 by: Danieleippoliti\.libero\.it
 185498 by: Antonio Petrelli

Re: ServletRedirectActionResult - is there a way to set parameters?
 185493 by: Brad A Cupit

Re: <s:property with dynamic values
 185495 by: JRD

Validation of Struts XML files
 185499 by: Adam Gordon

Administrivia:

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Antonio,

>1) What Struts? Struts 1.2.9 (Netbeans bundle)
>2) You can still do it in Javascript. I see.. I just want to know if you do
it with struts.

I am having trouble with it..I created a pop up window using javascript and
i cant pass query string on new window.
when i clicked a <html:link> I pass a paramId and paramProperty and I cant
make it appear to new window.

I have an action class that has *request.setAttribute("username",
request.getParameter("username"));*
on the new window I have *<%= out.println(request.getAttribute("username"))
%>* but this only displays the word NULL

I am new to struts..

Ryan

On Wed, Apr 16, 2008 at 4:22 PM, Antonio Petrelli <
antonio.petrelli@(protected):

> 2008/4/16, ryan webb <webb.ryan1@(protected)>:
> > Is it possible to make a window pop up using struts?
> > usually this can be done in Javascript..
>
> 1) What Struts?
> 2) You can still do it in Javascript
>
> Antonio
>
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> To unsubscribe, e-mail: user-unsubscribe@(protected)
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>
>

2008/4/16, ryan webb <webb.ryan1@(protected)>:
>
> I am having trouble with it..I created a pop up window using javascript
> and
> i cant pass query string on new window.
> when i clicked a <html:link> I pass a paramId and paramProperty and I cant
> make it appear to new window.
>
> I have an action class that has *request.setAttribute("username",
> request.getParameter("username"));*
> on the new window I have *<%=
> out.println(request.getAttribute("username"))
> %>* but this only displays the word NULL



Mmmm.... I think that you need to start from a tutorial, won't you?
http://struts.apache.org/1.x/userGuide/index.html

With Struts 1 you don't need to read parameters, but use the corresponding
ActionForm.
Moreover you need to understand the lifecycle of a request: when a new
request is created (for example, when a popup page is shown) the request
attributes are cleared.

Antonio

Hello,

<s:radio list="#{'Y':'Yes','N':'No'}" name="r2"/>

In this list, how do I preselect "No"?

--
Thanks
Ram

Hello
I two different deployment of Tomcat with an app that work fine in 5.0.27 but fails in 5.0.28. Looking at the startup the only difference I can see this time is that the 5.0.27 loads this:
org.apache.struts.tiles.TilesPlugin initDefinitionsFactory

and the 5.0.28 does not. Is there a way of making the startup of 5.0.28 equivalent to 5.0.27? Is it just copy over the web.xml? Ideas? tia.

2008/4/16, Chris Pat <cpanon@(protected)>:
>
> I two different deployment of Tomcat with an app that work fine in 5.0.27
> but fails in 5.0.28. Looking at the startup the only difference I can see
> this time is that the 5.0.27 loads this:
> org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
>
> and the 5.0.28 does not. Is there a way of making the startup of 5.0.28
> equivalent to 5.0.27?



I think that there are no substantial differences between 5.0.27 and
5.0.28.So may I see how you configure Tiles in your environment?


Is it just copy over the web.xml?



In general it is just a copy of the complete WAR.

Antonio

Hi Antonio  
Thanks, however it is very consistent. In 5.0.28 it says the action is not available and the only difference is that it is not loading that Factory. It must something subtle but deterministic. Any ideas what could be different? I have looked and they seem identical in server.xml and web.xml. Could it be an extra library? But obviously it is in the struts library and it is being loaded. tia

Antonio Petrelli <antonio.petrelli@(protected) :
>
> I two different deployment of Tomcat with an app that work fine in 5.0.27
> but fails in 5.0.28. Looking at the startup the only difference I can see
> this time is that the 5.0.27 loads this:
> org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
>
> and the 5.0.28 does not. Is there a way of making the startup of 5.0.28
> equivalent to 5.0.27?



I think that there are no substantial differences between 5.0.27 and
5.0.28.So may I see how you configure Tiles in your environment?


Is it just copy over the web.xml?



In general it is just a copy of the complete WAR.

Antonio

2008/4/16, Chris Pat <cpanon@(protected)>:
>
> In 5.0.28 it says the action is not available and the only difference is
> that it is not loading that Factory. It must something subtle but
> deterministic. Any ideas what could be different? I have looked and they
> seem identical in server.xml and web.xml. Could it be an extra
> library? But obviously it is in the struts library and it is being loaded.



Mmm... It could be the XML parser... do you receive some exception at
startup of the web application?

Antonio

I've been working with struts2 for about 2 months and so far I've been using
the preparable interface to populate any data the resulting page wants to
display. I've used the execute method to do non-visible work and determine a
result (which controls flow).



I'm wondering if this is the intended pattern. If so (and even if not), why?
The only intended benefit I see to using prepare at all is if you somehow
want to use one action in two different contexts - one which uses the
preparable interceptor and one which doesn't. If this was ever the case, I'd
argue two different actions should exist. If there's some common
functionality needed it should be in a superclass and the subclasses should
call into it in the execute method. So given the only appropriate scenario I
can think of off the top of my head, its use looks like an anti-pattern to
me.





I see prepare being used in the way I'm using it in many tutorials but I
haven't found any articles explaining any particular reason why. I'm hoping
maybe somebody can shed some light on this. should I bother using prepare at
all? Why?

With preparable, you can load the objects you need in prepare() method, and
do whatever specific you want in the actual called method. In CRUD actions,
it is very handy to use prepare and paramsPrepareParams to first load the
stuff you want, and after prepare all the parameters are inserted
automatically. You don't need to change or access the object states
explixitly at all in many cases -- the second params interceptor in the
stack does that for you.

On Wed, Apr 16, 2008 at 4:22 PM, Michael Gagnon <
mgagnon@(protected):

> I've been working with struts2 for about 2 months and so far I've been
> using
> the preparable interface to populate any data the resulting page wants to
> display. I've used the execute method to do non-visible work and determine
> a
> result (which controls flow).
>
>
>
> I'm wondering if this is the intended pattern. If so (and even if not),
> why?
> The only intended benefit I see to using prepare at all is if you somehow
> want to use one action in two different contexts - one which uses the
> preparable interceptor and one which doesn't. If this was ever the case,
> I'd
> argue two different actions should exist. If there's some common
> functionality needed it should be in a superclass and the subclasses
> should
> call into it in the execute method. So given the only appropriate scenario
> I
> can think of off the top of my head, its use looks like an anti-pattern to
> me.
>
>
>
>
>
> I see prepare being used in the way I'm using it in many tutorials but I
> haven't found any articles explaining any particular reason why. I'm
> hoping
> maybe somebody can shed some light on this. should I bother using prepare
> at
> all? Why?
>
>

Nobody has an answer to this simple question ?

As I asked, there is with select's tag "list" attribute, when namespace is added to the package and to the form tag. It doesn't recognize given array from the action class anymore. Do I miss something or this is a serious error in Struts 2 ?

--
Thanks, Milan Milanovic



----- Original Message ----
From: Milan Milanovic <milanmilanovich@(protected)>
To: user@(protected)
Sent: Tuesday, April 15, 2008 11:21:37 PM
Subject: Problem with Select tag

Hi,

I'm using Struts 2.0.11.1, and I have wierd problem with select UI tag. It works perfectly, but
when I added namespace to the package in struts.xml, which is used in form where this select tag
is located, I get an error:

"tag 'select', field 'list', id 'roles', name 'user.roles': The requested list key 'allRoles' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unkown location]"

I should note that I've added this namespace to the form tag too, where select tag is located.

How can I solve this problem ? It seems when namespace is added to package, select's list attribute doesn't recognize correct value stack anymore.

___________________________
Thanks in advance, Milan Milanovic





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Yes, I understand. But if you read my post, EVERYTHING works fine, but when I add namespace to package
in struts.xml (and in <s:form...) automatically "list" attribute of <s:select... doesn't recognize array anymore. I've tried
this many times and every time it works in the same way.

Here is excerpt of my code:

struts.xml:
--
<struts>
  <constant name="struts.objectFactory" value="spring" />
  <constant name="struts.devMode" value="true" />

<package name="administration" namespace="/administration" extends="struts-default">
    <action name="save" class="userAction" method="save">
       <result>/pages/administration/list.jsp</result>
       <result name="input">/pages/administration/list.jsp</result>
    </action>
</package>
<package name="register" namespace="/registers" extends="struts-default">
...
</struts>

UserAction.java:
--
public class UserAction extends ActionSupport implements Preparable {
/**
*
*/
private static final long serialVersionUID = 7654885094460681178L;
private UserService service;
private List<User> users;
private User user;
private String username;
private String [] allRoles;
public UserAction(UserService service) {
this.service = service;
}
public String execute() {
 users = service.findAllUsers();
 allRoles = service.getAllRoles(); <- this method works fine, it return an array of roles

     user = new User();
     return Action.SUCCESS;
  }
 
  public String save() {
   service.save(user);
 
   return execute();
}

public void prepare() throws Exception {
if (username != null)
 if (!username.equals(""))
  user = servis.findUserByUsername(username);
}

public void setAllRoles(String [] allRoles) {
this.allRoles = allRoles;
}

public String [] getAllRoles() {
return allRoles;
}

// Other getters/setters
}

users.jsp:
--
<body>
...
<s:form action="save" namespace="/administration" validate="true" method="post">
<s:textfield id="username" label="Username" name="user.username"/>
<s:textfield id="password" label="Password" name="user.password"/>
<s:select
id = "roleChoose"
label="Role"
list="allRoles" <- THIS DOESN'T WORK WHEN I ADD NAMESPACE HERE IN FORM AND IN STRUTS.XML FOR CORRESPODING PACKAGE
name="user.roles"
emptyOption="false"
value="user.roles"
headerKey="None"
multiple="true"/>
<s:submit theme="ajax" value="Save" targets="users" notifyTopics="/save"/>
</s:form>
...
</body>

--
Thx in advance, Milan Milanovic

----- Original Message ----
From: Michael Gagnon <mgagnon@(protected)>
To: Struts Users Mailing List <user@(protected)>
Sent: Wednesday, April 16, 2008 3:38:38 PM
Subject: RE: Problem with Select tag

Can you show your struts xml, calling java action, and resulting jsp code?
I've noticed error messages like that whenever ANYTHING was wrong on a page
with a select box -- completely independent of anything to do with the
select box. So I think whatever you changed MAY have broken something else
and the message may be misleading you.

-----Original Message-----
From: Milan Milanovic [mailto:milanmilanovich@(protected)]
Sent: Wednesday, April 16, 2008 9:28 AM
To: Struts Users Mailing List
Subject: Re: Problem with Select tag

Nobody has an answer to this simple question ?

As I asked, there is with select's tag "list" attribute, when namespace is
added to the package and to the form tag. It doesn't recognize given array
from the action class anymore. Do I miss something or this is a serious
error in Struts 2 ?

--
Thanks, Milan Milanovic



----- Original Message ----
From: Milan Milanovic <milanmilanovich@(protected)>
To: user@(protected)
Sent: Tuesday, April 15, 2008 11:21:37 PM
Subject: Problem with Select tag

Hi,

I'm using Struts 2.0.11.1, and I have wierd problem with select UI tag. It
works perfectly, but
when I added namespace to the package in struts.xml, which is used in form
where this select tag
is located, I get an error:

"tag 'select', field 'list', id 'roles', name 'user.roles': The requested
list key 'allRoles' could not be resolved as a
collection/array/map/enumeration/iterator type. Example: people or
people.{name} - [unkown location]"

I should note that I've added this namespace to the form tag too, where
select tag is located.

How can I solve this problem ? It seems when namespace is added to package,
select's list attribute doesn't recognize correct value stack anymore.

___________________________
Thanks in advance, Milan Milanovic






____________________________________________________________________________
________
Be a better friend, newshound, and
know-it-all with Yahoo! Mobile. Try it now.
http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ



____________________________________________________________________________
________
Be a better friend, newshound, and
know-it-all with Yahoo! Mobile. Try it now.
http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ



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Please write in English. This is an English speaking mailing list.

Antonio

2008/4/16, Danieleippoliti@(protected)>:
>
> Sto facendo un motore di ricerca di news.
> Inizialmente ho una pagina html che mostra le news piu aggiornate e fino
> qui nessun problema.
> Il fatto è che per ogni news mostrata ho un link del tipo "altre n news
> simili" dove si accede alle notizie simili per quella particolare news.
>
> Visto che io ho già calcolato allo scatenarsi della action di "accesso"
> tali cluster per ogni news vorrei che una volta che venga cliccato il link
> si scateni un azione a cui passo il giusto oggetto di tipo lista.
> Naturalmente non posso definire azioni con parametri in struts.xml perchè
> i parametri li conosco solo a run time quindi vorrei un passaggio di
> paramtri dinamico.
>
> Io ho provato a definire il link come segue:
>
> <s:url id="url" action="showSimilarNews">
> <s:param name="similarNews"><s:property value="similarNews"/></s:param>
> </s:url>
> <s:a href="%{url}">Altre: <s:property value="centralNews.numSimilarNews"/>
> News simili</s:a>
>
> dove similarNews risulta essere una lista di news sia per il bean
> sottostante alla news di accesso sia per la classe relativa alla action che
> dovrà mostrare le news simili.
>
> Grazie mille
>
>
> Daniele
>
>
>
> ---------- Initial Header -----------
>
> From    : "Antonio Petrelli" antonio.petrelli@(protected)
>
> To       : "Struts Users Mailing List" user@(protected)
> Cc       :
> Date    : Wed, 16 Apr 2008 16:43:40 +0200
> Subject : Re: dinamically parameters
>
>
>
>
>
>
>
>
> > 2008/4/16, Danieleippoliti@(protected)>:
> > > I have an Object List of objects News and when a user click on a link
> of the interfece i have to pass this parameter to the correspondent action.
> > > But this parameter is setted only at run time, so i have to pass it
> dinamically.
> > >
> > > Can I pass an Object list to an other action???
> > > How I can do It???
> >
> > How is this list rendered?
> >
> > Antonio
> >
>
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> >
> >
>
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