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# -*- coding: utf-8 -*-
#
from rest_framework import serializers
from django.utils import six
__all__ = ['StringIDField', 'StringManyToManyField', 'ChoiceDisplayField']
class StringIDField(serializers.Field):
def to_representation(self, value):
return {"pk": value.pk, "name": value.__str__()}
class StringManyToManyField(serializers.RelatedField):
def to_representation(self, value):
return value.__str__()
class ChoiceDisplayField(serializers.ChoiceField):
def __init__(self, *args, **kwargs):
super(ChoiceDisplayField, self).__init__(*args, **kwargs)
self.choice_strings_to_display = {
six.text_type(key): value for key, value in self.choices.items()
}
def to_representation(self, value):
if value is None:
return value
return {
'value': self.choice_strings_to_values.get(six.text_type(value), value),
'display': self.choice_strings_to_display.get(six.text_type(value), value),
}
class DictField(serializers.DictField):
def to_representation(self, value):
if not value or not isinstance(value, dict):
value = {}
return super().to_representation(value)