[jboss-user] [JBoss Seam] - Re: DataModel: Row is not available

2007-05-07 Thread umk 
For what it's worth, I'm seeing the same behavior with a java.util.Set - 
doesn't work. 

As soon as I changed to java.util.List, the dataTable rendered properly...

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[jboss-user] [JBoss Seam] - Re: DataModel: Row is not available

2007-04-17 Thread fabricio.lemos 
I want a page where I can edit the properties of a UseCase entity. At the end 
of the page I want to display the Step entities that belong to the UseCase. 

This is the page code that I have:

  | !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN 
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
  | html xmlns=http://www.w3.org/1999/xhtml;
  | xmlns:ui=http://java.sun.com/jsf/facelets;
  | xmlns:h=http://java.sun.com/jsf/html;
  | xmlns:f=http://java.sun.com/jsf/core;
  | xmlns:s=http://jboss.com/products/seam/taglib;
  | body
  | ui:composition template=/template.xhtml
  | 
  | ui:define name=title
  | Editar Caso de Uso
  | /ui:define
  | 
  | ui:define name=body
  | h:form
  | h:messages /
  | Caso de Uso: h:inputText value=#{useCase.name} 
required=true /
  | h:commandButton value=Inserir Passo 
action=insertStep /
  | h:commandButton value=Atualizar action=update
  | rendered=${useCase.id != null} /
  | h:commandButton value=Inserir action=insert
  | rendered=${useCase.id == null} /
  | 
  | h:dataTable value=#{stepList} var=stepVar
  | h:column
  | f:facet name=headerNome/f:facet
  | #{stepVar.name}
  | /h:column
  | h:column
  | f:facet name=headerEditar/f:facet
  | h:commandLink value=Editar 
action=updateStep /
  | /h:column
  | /h:dataTable
  | /h:form
  | /ui:define
  | 
  | /ui:composition
  | /body
  | /html
  | 

The insertStep commandButton shows another page where I can insert a Step and 
then go back to the UseCase page. The problem is that the UseCase page does not 
show the Step added.

When Step collection was a List, the application did work OK.

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[jboss-user] [JBoss Seam] - Re: DataModel: Row is not available

2007-04-16 Thread [EMAIL PROTECTED] 
I believe a DataModel must be a List.  Why did you change it to Set?

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[jboss-user] [JBoss Seam] - Re: DataModel: Row is not available

2007-04-16 Thread mrobinson28 
Is the documentation incorrect? 

seam reference docs wrote : 
  | @DataModel
  | 
  | Exposes an attribute of type List, Map, Set or Object[] as a JSF DataModel 
into the scope of the owning component...
  | 

I believe that the standard JSF datatable only supports a limited number of 
types (not java.util.Set ) which seems to cause problems for one-to-many 
relationships where the most natural type of association is a Set.  The 
hibernate documentation seems to really make a point of this being the most 
correct mapping where there are not any duplicates but then you can't render it 
using the stock datatable. The last time I tried it the MyFaces implementation 
actually incorrectly supported the rendering of a Set within a datatable but 
there were discussions about fixing the implementation to not support it. 


Can you show how you add to the Collection? and mabye the .xhtml (assuming 
Facelets)


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[jboss-user] [JBoss Seam] - Re: DataModel: Row is not available

2007-04-16 Thread [EMAIL PROTECTED] 
Can you post some of your code that shows what you're trying to achieve?

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