/* (non-Javadoc)
   * @see org.theospi.utils.mvc.intf.Controller#handleRequest(java.lang.Object, java.util.Map, java.util.Map, java.util.Map, org.springframework.validation.Errors)
   */
  public ModelAndView handleRequest(
      Object requestModel, Map request, Map session, Map application, Errors errors) {
    WizardPage page = (WizardPage) session.get(WizardPageHelper.WIZARD_PAGE);
    Id cellId = idManager.getId((String) request.get("page_id"));
    Id formId = idManager.getId((String) request.get("current_form_id"));
    Cell cell = getMatrixManager().getCellFromPage(cellId);
    boolean sessionPage = true;
    if (page == null) {
      sessionPage = false;
      page = cell.getWizardPage();
    }

    String submitAction = (String) request.get("submit");
    session.remove(WizardPageHelper.WIZARD_PAGE);
    getMatrixManager().removeFromSession(page);
    if (submitAction.equals(DELETE_FORM)) {
      getMatrixManager().detachForm(page.getId(), formId);
    } else // (submitAction.equals(DELETE_FEEDBACK))
    {
      Id reviewId = idManager.getId((String) request.get("review_id"));
      Review review = getReviewManager().getReview(reviewId);
      if (review != null) getReviewManager().deleteReview(review);
      else logger.warn("Null feedback form (perhaps multiple submits):" + reviewId);
    }

    if (sessionPage)
      session.put(WizardPageHelper.WIZARD_PAGE, getMatrixManager().getWizardPage(page.getId()));

    try {
      // unlock and delete content
      String reviewContentId = contentHosting.getUuid(formId.getValue());
      if (getLockManager().isLocked(reviewContentId))
        getLockManager().removeLock(reviewContentId, cellId.getValue());
      getContentHosting().removeResource(formId.getValue());
    } catch (Exception e) {
      logger.warn("Error removing form: " + e.toString());
    }

    // if not submit, then cancel, but both submit and cancel have the some view, so
    return new ModelAndView("continue", "page_id", page.getId().getValue());
  }
  public static String getUuid(String id) {
    org.sakaiproject.content.api.ContentHostingService service = getInstance();
    if (service == null) return null;

    return service.getUuid(id);
  }