def post_attendance(self, request):
"""Register whether or not a single student attended class.
Arguments
request: an AttendanceRecord message.
Returns:
An instance of message_types.VoidMessage.
"""
current_user = endpoints.get_current_user()
app_id = os.environ['APPLICATION_ID']
if app_id.startswith('dev~') or app_id == 'testbed-test':
email = '*****@*****.**'
else:
if current_user is None:
raise endpoints.UnauthorizedException('Invalid token.')
email = current_user.email()
domain = email.split('@')[1]
if domain == 'gmail.com': domain = ''
namespace_manager.set_namespace(domain)
student_key = ndb.Key('Student', request.student)
student = student_key.get()
if not student:
raise endpoints.BadRequestException('No student: %s' % request.student)
classname_key = ndb.Key('Class', request.classname)
classname = classname_key.get()
if not classname:
raise endpoints.BadRequestException('No class: %s' % request.classname)
if not AttendanceAPI.is_enrolled(classname, student_key):
raise endpoints.BadRequestException(
'Student %s is not enrolled in class %s' % (student_key, classname.name))
today = AttendanceAPI.today_as_ordinal(classname.timezone)
if request.date != today:
raise endpoints.BadRequestException('Date must be %s, but is: %s'
% (today, request.date))
logging.info('Updating class: %s student: %s date: %s user: %s attend: %s' %
(classname.name, request.student, request.date,
email, request.attended))
attendance_key = ndb.Key('Class', request.classname,
'Attendance', request.date)
attendance = attendance_key.get()
if not attendance:
attendance = Attendance(key=attendance_key, attending=[])
if request.attended:
if not AttendanceAPI.is_present(attendance, student_key):
attendance.attending.append(StudentPresent(student=student_key))
attendance.put()
else:
try:
attendance.attending.remove(student_present)
attendance.put()
except ValueError:
pass
return message_types.VoidMessage()
def get(self):
# authorize web requests
user = users.get_current_user()
authz = Authorize()
if not authz.authorize():
self.error(403)
return
# get the form input
yes = int(self.request.get('yes'))
class_id = self.request.get('class_id')
student_id = self.request.get('student_id')
if student_id:
student_key = ndb.Key('Student', int(student_id))
student = student_key.get()
date_ordinal = self.request.get('date')
date_struct = datetime.date.fromordinal(int(date_ordinal))
class_key = ndb.Key('Class', int(class_id))
the_class = class_key.get()
hours = self.request.get('hours')
today_as_ordinal = self.today_as_ordinal(the_class.timezone)
# can only edit attendance for today
attendance = None
if int(date_ordinal) == today_as_ordinal:
attendance_key = ndb.Key('Class', int(class_id), 'Attendance', int(date_ordinal))
attendance = attendance_key.get()
attendance_already_exists = False
try:
if attendance:
attendance_already_exists = True
if yes:
if student_id:
self.add_student(student_key, hours, attendance.attending)
else:
students = ndb.get_multi(the_class.enrolled)
for student in students:
self.add_student(student.key, hours, attendance.attending)
else:
self.remove_student(student_key, attendance.attending)
else:
if yes:
attendance = Attendance(key=attendance_key, attending=[])
if student_id:
self.add_student(student_key, hours, attendance.attending)
else:
students = ndb.get_multi(the_class.enrolled)
for student in students:
self.add_student(student.key, hours, attendance.attending)
except ValueError:
# hours was not a float
self.redirect('/students?class_id=%s&date=%s&errmsg=Invalid%%20value%%20for%%20hours' % (class_id, date_ordinal))
return
if attendance:
if yes:
status = "present"
else:
status = "absent"
logging.info('Change by %s: %s %s marked as %s for %s (hours: %s)' %
(authz.get_name(), student.first_name, student.last_name, status, the_class.name, hours))
attendance.put()
elif attendance_already_exists:
attendance_key.delete()
self.redirect('/students?class_id=%s&date=%s' % (class_id, date_ordinal))
