Object onDelete(String courseUuid) {
if (!StudentUtil.isPossibleUuid(courseUuid)) {
LOG.info("Invalid CourseUUID");
courseUuid = null;
course = null;
return this;
}
this.courseUuid = courseUuid;
int courseVersion = 0;
try {
courseManagerService.deleteCourse(courseUuid, courseVersion);
} catch (ObjectNotFoundException e) {
// object has already been deleted.
LOG.trace("course not found: " + courseUuid);
} catch (RestClientFailureException e) {
createForm.recordError("Internal error on server.");
createForm.recordError(e.getMessage());
// Display the cause. In a real system we would try harder to get a
// user-friendly message.
deleteMessage = ExceptionUtil.getRootCauseMessage(e);
// Trigger new event "failedDelete" which will bubble up.
componentResources.triggerEvent(FAILED_DELETE, new Object[] {courseUuid}, null);
// We don't want "delete" to bubble up, so we return true to say
// we've handled it.
// TODO: replace with exception service
LOG.debug("internal error on server during validation", e);
return true;
} catch (Exception e) {
// Display the cause. In a real system we would try harder to get a
// user-friendly message.
deleteMessage = ExceptionUtil.getRootCauseMessage(e);
// Trigger new event "failedDelete" which will bubble up.
componentResources.triggerEvent(FAILED_DELETE, new Object[] {courseUuid}, null);
// We don't want "delete" to bubble up, so we return true to say
// we've handled it.
// TODO: replace with exception service
LOG.info("unhandled exception during deletion", e);
return true;
}
// Trigger new event "successfulDelete" which will bubble up.
componentResources.triggerEvent(SUCCESFUL_DELETE, new Object[] {courseUuid}, null);
// We don't want "delete" to bubble up, so we return true to say we've
// handled it.
return indexPage;
}
/**
* Event method in order to get the datas to display.
*
* @throws IOException
*/
@OnEvent(value = JQueryEventConstants.DATA)
JSONObject onData() throws IOException {
/**
* If ajax mode, we filter on server-side, otherwise, we filter from the available data already
* loaded (see DefaultDataTableModel#filterData)
*/
if (getMode()) {
/** Give a chance to the developer to update the GridDataSource to filter data server-side */
resources.triggerEvent(JQueryEventConstants.FILTER_DATA, null, null);
/** Give a chance to the developer to sort the GridDataSource server-side */
resources.triggerEvent(JQueryEventConstants.SORT_DATA, null, null);
}
return getDataTModel()
.sendResponse(
request, getSource(), getDataModel(), getSortModel(), getOverrides(), getMode());
}
boolean onFailureFromCreateForm() {
// Rather than letting "failure" bubble up which doesn't say what you
// were trying to do, we trigger new event
// "failedCreate". It will bubble up because we don't have a handler
// method for it.
componentResources.triggerEvent(FAILED_CREATE, null, null);
// We don't want "failure" to bubble up, so we return true to say we've
// handled it.
return true;
}
boolean onFailureFromUpdateForm() {
versionFlash = course.getVersion();
// Rather than letting "failure" bubble up which doesn't say what you
// were trying to do, we trigger new event
// "failedUpdate". It will bubble up because we don't have a handler
// method for it.
componentResources.triggerEvent(FAILED_UPDATE, new Object[] {courseUuid}, null);
// We don't want "failure" to bubble up, so we return true to say we've
// handled it.
return true;
}
boolean onSuccessFromUpdateForm() {
// We want to tell our containing page explicitly what course we've
// updated, so we trigger new event
// "successfulUpdate" with a parameter. It will bubble up because we
// don't have a handler method for it.
componentResources.triggerEvent(SUCCESSFUL_UPDATE, new Object[] {courseUuid}, null);
// We don't want "success" to bubble up, so we return true to say we've
// handled it.
mode = Mode.REVIEW;
return true;
}
