def validate(self, data):
'''
Data validation
:param data: data from post/put request
:return: clean data
'''
# move fields from orgExtra to data and rename fieldname from camelCase
# to underscore
for key, value in data['orgExtra'].items():
data[re.sub('([A-Z]+)', r'_\1', key).lower()] = value
try:
course_org, course_id, course_run = Exam.get_course_data(
data['course_id'])
except ValueError as e:
raise serializers.ValidationError("Wrong courseId data")
data['course_organization'] = course_org
data['course_identify'] = "/".join((course_org, course_id))
data['course_run'] = "/".join((course_org, course_id, course_run))
data['exam_end_date'] = parser.parse(data['exam_end_date'])
data['exam_start_date'] = parser.parse(data['exam_start_date'])
del (data['orgExtra'])
try:
Exam(**data).full_clean()
except ValidationError as e:
raise serializers.ValidationError(e.message_dict)
return super(ExamSerializer, self).validate(data)
