Hmm, interesting. Doesn't seem to work even if I send the object as a context
parameter, the object is still null in the action method :-/
- hugi
On 9.12.2011, at 12:50, Thiago H. de Paula Figueiredo wrote:
> On Fri, 09 Dec 2011 10:38:07 -0200, Hugi Thordarson <h...@karlmenn.is> wrote:
>
>> In the component "ObjectLink", I can print the value of currentObject.name.
>> However, if I use the "object" binding in an action method
>> (onActionFromSelect) the "object" parameter is always null?
>
> Because onActionFromSelect() is invoked in another request, so the value of
> currentObject is lost unless you persist it in some way. In Tapestry 4 your
> code would work, but T4 had something called the rewind phase that caused
> worse problems, so T5 doesn't have rewind (yeah!). The recommended solution
> here is to add context="currentObject" to the ActionLink inside your
> component and make onActionFromSelect() to receive the context. Something
> like this:
>
> <t:actionLink t:id="select" context="object"><t:body /></t:actionLink>
>
> Object onActionFromSelect(CayenneDataObject object) {
> Class pageClass = CRUDUtil.detailPageClass( object.getClass() );
> DetailPage<CayenneDataObject> t =
> (DetailPage<CayenneDataObject>)componentSource.getPage( pageClass );
> t.setSelectedObject( object );
> return t;
> }
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and
> instructor
> Owner, Ars Machina Tecnologia da Informação Ltda.
> http://www.arsmachina.com.br
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