Files
RasadDam_Backend/apps/authorization/api/v1/serializers.py

120 lines
4.0 KiB
Python

import typing
from rest_framework import serializers
from apps.authorization.models import (
Role,
Permissions,
UserRelations,
Page
)
from apps.authentication.api.v1.serializers import serializer as auth_serializer
from apps.authentication.models import Organization
import itertools
class PageSerializer(serializers.ModelSerializer):
class Meta:
model = Page
fields = [
'name',
'code'
]
class PermissionSerializer(serializers.ModelSerializer):
class Meta:
model = Permissions
fields = [
'id',
'name',
'description',
'category',
'page'
]
def to_representation(self, instance):
representation = super().to_representation(instance)
representation['name'] = 'Hello'
return representation
@classmethod
def permissions_structure_output(cls, permissions: list) -> typing.Any:
""" set a structure for permissions """
structure = {}
for permission in permissions:
if permission.page.name not in structure.keys():
structure.update(
{f'{permission.page.name}': itertools.chain(*list(
permission.page.permission_page.all().values_list('name')))
})
return structure
class RoleSerializer(serializers.ModelSerializer):
class Meta:
model = Role
fields = [
'id',
'role_name',
'description',
'type',
'permissions'
]
extra_kwargs = {
'permissions': {'required': False} # permissions not required for some roles
}
def to_representation(self, instance):
"""
using @to_representation for many_to_many permissions in response
"""
representation = super().to_representation(instance)
representation['type'] = auth_serializer.OrganizationTypeSerializer(instance.type).data
if instance.permissions: # noqa
permissions = instance.permissions.all()
representation['permissions'] = PermissionSerializer().permissions_structure_output(permissions)
return representation
class UserRelationSerializer(serializers.ModelSerializer):
class Meta:
model = UserRelations
fields = [
'id',
'user',
'organization',
'role',
'permissions',
]
def to_representation(self, instance):
""" custom output for serializer """
representation = super().to_representation(instance)
if isinstance(instance, UserRelations):
if instance.user:
representation['user'] = auth_serializer.UserSerializer(instance.user).data
if instance.organization:
representation['organization'] = auth_serializer.OrganizationSerializer(instance.organization).data
if instance.role:
representation['role'] = RoleSerializer(instance.role).data
if instance.permissions: # noqa
# set permissions by a default structure like:
# 'page permission':[element permissions]
permissions = instance.permissions.all()
representation['permissions'] = PermissionSerializer().permissions_structure_output(permissions)
return representation
def update(self, instance, validated_data):
""" update user relation object """
if validated_data.get('role'):
instance.role = Role.objects.get(id=validated_data.get('role', instance.role))
if validated_data.get('organization'):
instance.organization = Organization.objects.get(
id=validated_data.get('organization', instance.organization)
)
instance.save()
instance.permissions.clear()
instance.permissions.add(*(validated_data.get('permissions', instance.permissions)))
return instance