9cf2f9f298
This will remove imports from __future__ that are no longer needed. https://docs.python.org/3.5/library/2to3.html#2to3fixer-future
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
"""
|
|
Course modes API serializers.
|
|
"""
|
|
|
|
|
|
from rest_framework import serializers
|
|
|
|
from course_modes.models import CourseMode
|
|
|
|
|
|
class CourseModeSerializer(serializers.Serializer):
|
|
"""
|
|
Serializer for the CourseMode model.
|
|
The ``course_id``, ``mode_slug``, ``mode_display_name``, and ``currency`` fields
|
|
are all required for a create operation. Neither the ``course_id``
|
|
nor the ``mode_slug`` fields can be modified during an update operation.
|
|
"""
|
|
UNCHANGEABLE_FIELDS = {'course_id', 'mode_slug'}
|
|
|
|
course_id = serializers.CharField()
|
|
mode_slug = serializers.CharField()
|
|
mode_display_name = serializers.CharField()
|
|
min_price = serializers.IntegerField(required=False)
|
|
currency = serializers.CharField()
|
|
expiration_datetime = serializers.DateTimeField(required=False)
|
|
expiration_datetime_is_explicit = serializers.BooleanField(required=False)
|
|
description = serializers.CharField(required=False)
|
|
sku = serializers.CharField(required=False)
|
|
bulk_sku = serializers.CharField(required=False)
|
|
|
|
class Meta(object):
|
|
# For disambiguating within the drf-yasg swagger schema
|
|
ref_name = 'course_modes.CourseMode'
|
|
|
|
def create(self, validated_data):
|
|
"""
|
|
This method must be implemented for use in our
|
|
ListCreateAPIView.
|
|
"""
|
|
return CourseMode.objects.create(**validated_data)
|
|
|
|
def update(self, instance, validated_data):
|
|
"""
|
|
This method must be implemented for use in our
|
|
RetrieveUpdateDestroyAPIView.
|
|
"""
|
|
errors = {}
|
|
|
|
for field in validated_data:
|
|
if field in self.UNCHANGEABLE_FIELDS:
|
|
errors[field] = ['This field cannot be modified.']
|
|
|
|
if errors:
|
|
raise serializers.ValidationError(errors)
|
|
|
|
for modifiable_field in validated_data:
|
|
setattr(
|
|
instance,
|
|
modifiable_field,
|
|
validated_data.get(modifiable_field, getattr(instance, modifiable_field))
|
|
)
|
|
instance.save()
|
|
return instance
|