private WebErrors validateSave(Content bean, Integer channelId,
HttpServletRequest request) {
WebErrors errors = WebErrors.create(request);
CmsSite site = CmsUtils.getSite(request);
bean.setSite(site);
if (errors.ifNull(channelId, "channelId")) {
return errors;
}
Channel channel = channelMng.findById(channelId);
if (errors.ifNotExist(channel, Channel.class, channelId)) {
return errors;