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serializers.py
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serializers.py
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from django.core.exceptions import ValidationError
from pydash import get
from rest_framework import serializers
from rest_framework.fields import JSONField, CharField, IntegerField
from core.client_configs.constants import HOME_TYPE
from core.client_configs.models import ClientConfig
class ClientConfigAbstractSerializer(serializers.ModelSerializer):
config = JSONField(required=False)
url = CharField(source='uri', read_only=True)
scope = CharField(read_only=True, source='resource_type.name')
class Meta:
abstract = True
model = ClientConfig
fields = (
'id', 'name', 'description', 'type', 'is_default', 'config', 'url', 'scope', 'public', 'is_template'
)
def __init__(self, *args, **kwargs):
self.resource = get(kwargs, 'context.view.kwargs.resource', None)
super().__init__(*args, **kwargs)
def create(self, validated_data):
user = self.context['request'].user
from core.common.utils import get_content_type_from_resource_name
resource_type = get_content_type_from_resource_name(validated_data.pop('resource_type', None) or self.resource)
instance = self.get_instance(validated_data, resource_type=resource_type, created_by=user, updated_by=user)
instance.type = instance.type or HOME_TYPE
instance.is_default = bool(instance.is_default)
try:
instance.full_clean()
instance.save()
if instance.id and instance.is_default:
instance.siblings.filter(is_default=True).update(is_default=False)
except ValidationError as ex:
self._errors.update(ex.message_dict)
if self._errors:
raise serializers.ValidationError(self._errors)
return instance
@staticmethod
def get_instance(validated_data, **kwargs):
return ClientConfig(**validated_data, **kwargs)
class ClientConfigTemplateSerializer(ClientConfigAbstractSerializer):
@staticmethod
def get_instance(validated_data, **kwargs):
return ClientConfig(**validated_data, **kwargs, resource_id=0, is_template=True)
class ClientConfigSerializer(ClientConfigAbstractSerializer):
resource_type = CharField(write_only=True, required=False)
resource_id = IntegerField(write_only=True, required=False)
class Meta:
model = ClientConfig
fields = ClientConfigAbstractSerializer.Meta.fields + ('resource_type', 'resource_id')
def update(self, instance, validated_data):
user = self.context['request'].user
for attr in ['name', 'description', 'config', 'type']:
setattr(instance, attr, validated_data.get(attr, get(instance, attr)))
instance.is_default = bool(validated_data.get('is_default', instance.is_default))
instance.updated_by = user
try:
instance.full_clean()
instance.save()
if instance.id and instance.is_default:
instance.siblings.filter(is_default=True).update(is_default=False)
except ValidationError as ex:
self._errors.update(ex.message_dict)
if self._errors:
raise serializers.ValidationError(self._errors)
return instance