def helper_semester_course_operation_start(request, courses, send_email):
for course in courses:
course.vote_start_date = datetime.date.today()
course.evaluation_begin()
course.save()
messages.success(request, ungettext("Successfully started evaluation for %(courses)d course.",
"Successfully started evaluation for %(courses)d courses.", len(courses)) % {'courses': len(courses)})
if send_email:
EmailTemplate.send_evaluation_started_notifications(courses)
