[jboss-user] [JBoss Seam] - h:selectManyCheckbox for ManyToMany relationship

yuriy_zubarev do-not-reply at jboss.com
Wed Oct 17 14:14:48 EDT 2007


Hello,

Here is my entity model:


  | Module
  |  |-- name
  | Permission
  |  |-- Module
  |  |-- name
  | Role
  |  |-- Permissions
  |  |-- name
  | 

When I want to provide a front-end to edit Role information I do something like this and everything works:


  | <h:form>
  |     <h:inputText value="#{role.name}"/>
  | 
  |     <h:selectManyCheckbox value="#{role.permissions}">
  |         <s:selectItems value="#{permissions}" var="p" label="#{p.name}"/>
  |         <s:convertEntity/>
  |     </h:selectManyCheckbox>
  | 
  |     <h:commandLink action="#{roleHome.persist}" value="Save"/>
  | </h:form>
  | 

The problem here is that all check boxes for permissions are grouped together. If you look at the entity model you will see that each permission belongs to a module. So I wanted to show check boxes grouped by module name.  I tried something like this but it didn't work:


  | <h:form>
  |     <h:inputText value="#{role.name}"/>
  | 
  |     <h:dataTable value="#{modules.resultList}" var="m">
  |         <h:column>
  |             #{m.name}
  | 
  |             <h:selectManyCheckbox value="#{role.permissions}">
  |                 <s:selectItems value="#{m.permissions}" var="p" label="#{p.name}"/>
  |                 <s:convertEntity/>
  |             </h:selectManyCheckbox>
  |         </h:column>
  |     </h:dataTable>
  | 
  |     <h:commandLink action="#{roleHome.persist}" value="Save"/>
  | </h:form>
  | 

The page looks exactly as I wanted it to. It's just the state of check boxes doesn't get persisted. I guess it's because "name" element of HTML check box also gets a portion of it from h:dataTable.

Any suggestions?

Thank you,
Yuriy



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