[jboss-user] [JBoss Seam] - Strange EL problem

[mwkohout]

I've got two places on a page where I iterate lists of object.  For each object I output a button that allows them(in this case) to add a user and role to a domain object(in this case, a research study-I work for a university).  While in both cases the datatable is populated, in the first instance when the aj4 buttons are clicked the backing actions are not called.  I don't know why.  

This is the nonworking instance.  It displays the output of a user search.  In summary, what it does is iterate through a list of members returned by the 'userHome' object.  Then, in the 3rd column, I obtain a list of all possible roles and iterate over them, displaying the appropriate buttons tied to the appropriate methods.  

  | <rich:dataTable id="memberSelectList" value="#{userHome.findByNameOrInternetID(memberSearchName).toArray()}" var="possibleMember" rendered="#{memberSearchName.trim().length() gt 0}" rowKey="#{possibleMember.umnDID}" rowKeyVar="umnDID">
  |                 <rich:column>
  |                     <f:facet name="header">Name</f:facet>
  |                     #{possibleMember.name}
  |                 </rich:column>
  |                 <rich:column>
  |                     <f:facet name="header">User Name</f:facet>
  |                     #{possibleMember.userName}
  |                 </rich:column>
  |                 <rich:column>
  |                     <f:facet name="header">Add to List of Study Members</f:facet>
  |                     <a4j:repeat value="#{studyRoleHome.getAllRoles()}" var="role" >
  |                        possibleMember: #{possibleMember.class} role: ${role.class}
  |                         <a4j:commandButton type="submit" value="Add as #{role.name}" reRender="memberGrid" rendered="#{!viewStudyAction.study.containsMember(possibleMember,role)}" action="#{viewStudyAction.study.addMember(possibleMember,role)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove as #{role.name}"
  |                         reRender="memberGrid"                                                                                                                                                                                                                                   rendered="#{viewStudyAction.study.containsMember(possibleMember,role) and not viewStudyAction.isRoleAndUser(user, possibleMember, role, administrativeRole) }"
  |  action="#{viewStudyAction.removeMember(possibleMember,role)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove as #{role.name}" reRender="memberGrid" rendered="#{viewStudyAction.isRoleAndUser(user, possibleMember, role, administrativeRole) and not viewStudyAction.confirmRemoveSelfAsAdmin}" action="#{viewStudyAction.setConfirmRemoveSelfAsAdmin(true)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove Yourself as #{role.name}.  This cannot be undone." reRender="bodyPanel" rendered="#{viewStudyAction.isRoleAndUser(user, possibleMember, role, administrativeRole) and viewStudyAction.confirmRemoveSelfAsAdmin}" action="#{viewStudyAction.removeMember(possibleMember,role)}"  ajaxSingle="true" />
  |                     </a4j:repeat>
  |                 </rich:column>
  |             </rich:dataTable>
  | 
  | 

This is the working list-it displays a list of current users.  It obtains it's array/list of user and roles directly from the Study object, then iterates over them.  For each returned user it also iterates over the list of roles.

  | <rich:dataTable id="memberList" value="#{viewStudyAction.study.getUserAndRole().toArray()}" var="userAndRole" rowKey="#{userAndRole.user.umnDID}" rowKeyVar="umnDID" >
  |                 <rich:column>
  |                     <f:facet name="header">Name</f:facet>
  |                     #{userAndRole.user.name}
  |                 </rich:column>
  |                 <rich:column>
  |                     <f:facet name="header">User Name</f:facet>
  |                     #{userAndRole.user.userName}
  |                 </rich:column>
  |                 <rich:column>
  |                     <f:facet name="header">Add or Remove Users from the list of Study Members</f:facet>
  |                     <a4j:repeat value="#{studyRoleHome.getAllRoles()}" var="role" rendered="#{studyRoleHome.containsRole(viewStudyAction.study.userAndRole, user, administrativeRole)}" >
  |                         userAndRole.user: #{userAndRole.user.class} role: #{role.class}
  |                         <a4j:commandButton type="submit" value="Add as #{role.name}" reRender="memberGrid" rendered="#{!viewStudyAction.study.containsMember(userAndRole.user,role)}" action="#{viewStudyAction.study.addMember(userAndRole.user,role)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove as #{role.name}" reRender="memberGrid" rendered="#{viewStudyAction.study.containsMember(userAndRole.user,role) and not viewStudyAction.isRoleAndUser(user, userAndRole.user, role, administrativeRole) }" action="#{viewStudyAction.removeMember(userAndRole.user,role)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove as #{role.name}" reRender="memberGrid" rendered="#{viewStudyAction.isRoleAndUser(user, userAndRole.user, role, administrativeRole) and not viewStudyAction.confirmRemoveSelfAsAdmin}" action="#{viewStudyAction.setConfirmRemoveSelfAsAdmin(true)}"  ajaxSingle="true" />
  |                         <a4j:commandButton type="submit" value="Remove Yourself as #{role.name}.  This cannot be undone." reRender="bodyPanel" rendered="#{viewStudyAction.isRoleAndUser(user, userAndRole.user, role, administrativeRole) and viewStudyAction.confirmRemoveSelfAsAdmin}" action="#{viewStudyAction.removeMember(userAndRole.user,role)}"  ajaxSingle="true" />
  |                     </a4j:repeat>
  |                 </rich:column>
  |             </rich:dataTable>
  | 
  | 

Any opinion would be welcome.  This problem has stumped me for more than a couple of days.
Mike Kohout

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