4 Replies Latest reply on Oct 23, 2007 11:48 AM by Pete Muir

    h:selectManyCheckbox for ManyToMany relationship

    Yuriy ZUbarev Newbie

      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