You really don't need to @Persist anything here. Joachim was right with the
context parameter. If you change your component class and template along the
following lines it works fine:
Component class:
public class Test
{
@Parameter
@Property
private String usage;
@Property
private String display;
@Inject
private Block refreshBlock;
Object onActionFromClick(String context)
{
display = context;
return refreshBlock;
}
}
Component template:
<div xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
<t:block t:id="refreshBlock">
${display}
</t:block>
<t:actionlink t:id="click" t:zone="refreshZone" context="usage">
Click me!
</t:actionlink>
<br/>
</div>
2009/3/26 ahingsaka samsenesena <[email protected]>
> Thanks for the answer, and sorry for the duplicated mails (our mail
> server has problems),
>
> This solution works well, but I really can't see why the behaviour is
> different : the actionlink is the same in the 2 situations explained
> below.
>
> Or does it simply mean that we should not use persisting attributes in
> components when there is a loop ?
>
> Kind regards,
> Ahingsaka
>
> Le jeudi 26 mars 2009 à 15:27 +0100, Joachim Van der Auwera a écrit :
> > You should pass the "usage" string as context parameter on the action
> link.
> > The problem is that the url for each of the events in the loop are the
> same.
> >
> > Kind regards,
> > Joachim
> >
> > ahingsaka samsenesena wrote:
> > > Hi,
> > >
> > > I'm trying to use my own component inside a loop and I have a problem
> > > when there is a "persist" annotation on attributes.
> > >
> > > I want to loop with my component named "test" in a page like this :
> > >
> > > <t:zone t:id="refreshZone"/>
> > >
> > > <t:loop source="0..2" value="testId">
> > > <t:test usage="${usage}"/>
> > > </t:loop>
> > >
> > > The component contains a string attribute "usageValue" that will be
> > > displayed in the refreshZone.
> > > This attribute comes from the parameter "usage". I put my value on the
> > > setupRender method.
> > >
> > > The class of the component is like this :
> > > public class Test {
> > >
> > > @Parameter
> > > private String usage;
> > >
> > > @Persist
> > > @Property
> > > private String usageValue;
> > >
> > > @Inject
> > > private Block refreshBlock;
> > >
> > > boolean setupRender(MarkupWriter writer) {
> > > this.usageValue = usage;
> > > return true;
> > > }
> > >
> > > Object onActionFromClick() {
> > > return refreshBlock;
> > > }
> > > }
> > >
> > > And the tml :
> > > <t:block t:id="refreshBlock">
> > > ${usageValue}
> > > </t:block>
> > >
> > > <t:actionlink t:id="click" t:zone="refreshZone">Click
> > > me</t:actionlink><br/>
> > >
> > > The controller of the page is quite simple and returns an usage for a
> > > given number
> > > public class ContentTest {
> > >
> > > @Property
> > > private int testId;
> > >
> > > public String getUsage() {
> > > if (testId == 0) {
> > > return "pix";
> > > } else if (testId == 1) {
> > > return "zoom";
> > > } else if (testId == 2) {
> > > return "thumb";
> > > } else
> > > return "";
> > >
> > > }
> > > }
> > >
> > > Here is the problem : when I click on the link, the value displayed is
> > > always "thumb" !
> > > I should have "pix" displayed with the first link, "zoom" with the
> > > second ...
> > >
> > > I tried to put an id, but the behaviour is the same :
> > > <t:loop source="0..2" value="testId">
> > > <t:test t:id="testId" usage="${usage}"/>
> > > </t:loop>
> > >
> > > And if I don't use the loop, there is no problem :
> > > <t:zone t:id="refreshZone"/>
> > > <t:test usage="literal:pix">
> > > </t:test>
> > > <t:test usage="literal:zoom">
> > > </t:test>
> > > <t:test usage="literal:thumb">
> > > </t:test>
> > >
> > > If I use these lines, i have the right behaviour.
> > >
> > > What's going on ?
> > >
> > > Ahingsaka SAMSENESENA
> > >
> > >
> > > ---------------------------------------------------------------------
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> > > For additional commands, e-mail: [email protected]
> > >
> > >
> >
> >
>
>
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