Hi All,

I am new to Seam and have a problem when trying to implement a profile page. I am using Seam 2.2.0.GA.

My strategy is to have two entities, for the User and for his or her photo with a One to One connection with Lazy fetching.

The Profile bean has a Conversation scope and a Manual Flush mode.

In the page I am using the Seam graphic Image to display the image if exists, or a default icon if not, and the seam File Upload to load the image file. I am using Richfaces support tag to check for a change in the File Upload and re-render the Image , surrounded by an output panel, if changed.

I have save and cancel buttons at the bottom of the page, where the save flushes the entity and the cancel clears it.

What actually happens is that when I load a new image it is displayed as non-existent (default icon) but after saving and re-entering the page the correct picture appears. If I cancel the picture is removed (i.e. the older picture is removed and there is no picture, not the old one and not the newly loaded one).

Since I am a Newbie, I am probably doing something wrong, but I have a hard time to figure it out. Any help will be much appreciated!

The relevant code:

@Stateful
@Scope(ScopeType.CONVERSATION)
@Name("profile")
public class ProfileBean implements Profile
{
     @Logger private Log log;

     @In private EntityManager entityManager;
     @In private Identity identity;
     @In StatusMessages statusMessages;

        ..........

     private User currentUser;

        ..........

     @SuppressWarnings("unchecked")
     @Create
     @Begin(join=true, flushMode=FlushModeType.MANUAL)
     public void start()
     {

                ...........

          currentUser = (User)entityManager.createQuery("SELECT o FROM User o WHERE o.username = :username")
          .setParameter("username", identity.getCredentials().getUsername())
          .getSingleResult();
          if (currentUser != null)
          {
               if (currentUser.getPhoto() == null)
               {
                    currentUser.setPhoto(new Photo());
                    currentUser.getPhoto().setIdUser(currentUser.getIdUser());
                    currentUser.getPhoto().setSize(0);
                    log.info("profile.start() initialized photo for #{profile.currentUser.username}");
               }

        .............

     }

     @End
     public void save()
     {
          if (currentUser != null)
          {
               if (currentUser.getPhoto() == null ||
                    currentUser.getPhoto().getSize() == null ||
                    currentUser.getPhoto().getSize() == 0)
               {
                    currentUser.setPhoto(null);
                    entityManager.createQuery("DELETE FROM Photo WHERE idUser = :idUser")
                    .setParameter("idUser", currentUser.getIdUser())
                    .executeUpdate();
               }

       ..............

               entityManager.flush();
               log.info("profile.save() save profile for user: #{profile.currentUser.username}");
               statusMessages.add(Severity.INFO,"Profile #{profile.currentUser.username} updated");
          }
     }

     @End
     public void cancel()
     {
          entityManager.clear();
          log.info("profile.cancel() cancelled changes to profile of user: #{profile.currentUser.username}");
          statusMessages.add(Severity.WARN, "Profile #{profile.currentUser.username} not updated");
     }

        ...........

}

@Entity
@Table(name = "user")
public class User implements java.io.Serializable {

.........

     
     @OneToOne(fetch = FetchType.LAZY,
               cascade=CascadeType.ALL)
     @PrimaryKeyJoinColumn
     public Photo getPhoto() { return photo; }
     public void setPhoto(Photo photo) { this.photo = photo; }
}

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
     xmlns:s="http://jboss.com/products/seam/taglib"
     xmlns:ui="http://java.sun.com/jsf/facelets"
     xmlns:f="http://java.sun.com/jsf/core"
     xmlns:h="http://java.sun.com/jsf/html"
     xmlns:rich="http://richfaces.org/rich"
     xmlns:a="http://richfaces.org/a4j" template="layout/template.xhtml">

     <ui:define name="body">

          <h:form id="profileForm" enctype="multipart/form-data">

        ...........

                    <s:decorate id="photoField" template="layout/edit.xhtml">
                         <h:panelGrid columns="2">
                                   <h:panelGroup>
                                        <a:outputPanel id="imagePanel">
                                             <s:graphicImage id="currentImage"
                                                  value="#{profile.currentUser.photo.data}"
                                                  rendered="#{profile.currentUser.photo.data != null}">
                                                  <s:transformImageSize width="50" maintainRatio="true"/>
                                             </s:graphicImage>
                                             <s:graphicImage id="defaultImage"
                                                  value="/img/defaultPhoto.png"
                                                  rendered="#{profile.currentUser.photo.data == null}"/>
                                        </a:outputPanel>
                                   </h:panelGroup>
                              <a:region id="photoRegion">
                                   <s:fileUpload id="uploadImage"
                                        data="#{profile.currentUser.photo.data}"
                                        contentType="#{profile.currentUser.photo.contentType}"
                                        fileName="#{profile.currentUser.photo.name}"
                                        fileSize="#{profile.currentUser.photo.size}">
                                        <a:support event="onchange"     reRender="imagePanel"/>
                                   </s:fileUpload>
                              </a:region>
                         </h:panelGrid>
                    </s:decorate>
                 ........


               <div class="actionButtons"><h:commandButton id="save"
                    value="Save" action="#{profile.save}" /></div>

               <div class="actionButtons"><h:commandButton id="cancel"
                    immediate="true" value="Cancel" action="#{profile.cancel}" /></div>

          </h:form>

     </ui:define>

</ui:composition>