Configuring and using seam's convertEntity

[Felipe Reis]

Hello everyone.

I'm trying to use the convertEntity tag from Jboss Seam in a <rich:comboBox> but I'm cannot manage to make it work.

I've read at the documentation that:

You must use Seam managed transactions (see Section 9.2, “Seam managed transactions”) with <s:convertEntity />.

So firstly I've worked on that... As I'm not using EJB and JTA transactions I've added this:

 <transaction:entity-transaction entity-manager="#{entityManager}"/>   

to my components.xml.

Then, I've inserted this

  <ui:jpa-entity-loader entity-manager="#{entityManager}" />  

to my components.xml. I don't really understand why, but it was in the docs.

My .xhtml looks like this:

  
					<rich:comboBox value="#{coursHome.instance.session}" required="true">
						<s:selectItems var="_session" 
							value="#{sessionList.listeSessionActives}"
							label="#{_session.localisation.libelle} - #{_session.titre}"  />
						<s:convertEntity/>	
					</rich:comboBox>

What I got as a result is a combobox that displays correctly, however, when I submit the form, I get the following error:

java.lang.NumberFormatException: For input string: ""

I assume that the value from the id is not being passed to the entity converter...

Has anyone had this problem before?

[Felipe Reis]

Actually, there is yet another problem. The displaying of the combobox is faulty too, it shows the id values instead of what is written in the label attribute...

Disappointing.

[Dean Hiller]

If you want that feature to work, go here and vote for this

https://jira.jboss.org/jira/browse/RF-5046

they are considering making a component that works like selectOneMenu. rich:comboBox does NOT work like selectOneMenu!!!