HttpServletResponse response) {
PhdCandidacyPeriod phdCandidacyPeriod = readPhdCandidacyPeriod(request);
PhdCandidacyPeriodBean bean = readPhdCandidacyPeriodBean();
try {
phdCandidacyPeriod.edit(bean.getStart(), bean.getEnd());
} catch (DomainException e) {
addActionMessage("error", request, e.getKey(), e.getArgs());
return editPhdCandidacyPeriodInvalid(mapping, form, request, response);
}