protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object obj,
	                                BindException errors) throws Exception {

		HttpSession httpSession = request.getSession();
		String view = getFormView();

		if (Context.isAuthenticated()) {
			Form form = (Form) obj;
			MessageSourceAccessor msa = getMessageSourceAccessor();
			String action = request.getParameter("action");
			if (action == null) {
				httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "Form.not.saved");
			} else {
				if (action.equals(msa.getMessage("Form.save"))) {
					try {
						// save form
						form = Context.getFormService().saveForm(form);
						httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "Form.saved");
					}
					catch (Exception e) {
						log.error("Error while saving form " + form.getFormId(), e);
						errors.reject(e.getMessage());
						httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "Form.not.saved");
						return showForm(request, response, errors);
					}
				} else if (action.equals(msa.getMessage("Form.delete"))) {
					try {
						Context.getFormService().purgeForm(form);
						httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "Form.deleted");
					}
					catch (DataIntegrityViolationException e) {
						httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "Form.cannot.delete");
						return new ModelAndView(new RedirectView("formEdit.form?formId=" + form.getFormId()));
					}
					catch (Exception e) {
						log.error("Error while deleting form " + form.getFormId(), e);
						errors.reject(e.getMessage());
						httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "Form.cannot.delete");
						return showForm(request, response, errors);
						//return new ModelAndView(new RedirectView(getSuccessView()));
					}
				} else if (action.equals(msa.getMessage("Form.updateSortOrder"))) {

					FormService fs = Context.getFormService();

					TreeMap<Integer, TreeSet<FormField>> treeMap = FormUtil.getFormStructure(form);
					for (Integer parentFormFieldId : treeMap.keySet()) {
						float sortWeight = 0;
						for (FormField formField : treeMap.get(parentFormFieldId)) {
							formField.setSortWeight(sortWeight);
							fs.saveFormField(formField);
							sortWeight += 50;
						}
					}

				} else {
					try {
						Context.getFormService().duplicateForm(form);
						httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "Form.duplicated");
					}
					catch (Exception e) {
						log.error("Error while duplicating form " + form.getFormId(), e);
						errors.reject(e.getMessage());
						httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "Form.cannot.duplicate");
						return showForm(request, response, errors);
					}
				}

				view = getSuccessView();
			}
		}

		return new ModelAndView(new RedirectView(view));
	}