fix - cant delete admin role

apps/authorization/api/v1/api.py

@@ -13,6 +13,7 @@ from apps.authorization.api.v1.serializers import (
     UserRelationSerializer,
     PageSerializer
 )
+from apps.authorization.exception import AdminRoleDeleteException
 from apps.authorization.models import (
     Role,
     Permissions,
@@ -41,6 +42,15 @@ class RoleViewSet(BaseViewSet, SoftDeleteMixin, viewsets.ModelViewSet):
             serializer = self.get_serializer(role, many=True)
             return self.get_paginated_response(serializer.data)
 
+    def destroy(self, request, pk=None, *args, **kwargs):
+        """ soft delete of role except Admin """
+
+        role = self.get_object()
+        if role.type.key == 'ADM':
+            raise AdminRoleDeleteException()
+        role.soft_delete()
+        return Response(status=status.HTTP_200_OK)
+
 
 class PageViewSet(SoftDeleteMixin, viewsets.ModelViewSet):
     """ add website pages to system to set permission on it """

apps/authorization/exception.py

@@ -0,0 +1,8 @@
+from rest_framework import status
+from rest_framework.exceptions import APIException
+
+
+class AdminRoleDeleteException(APIException):
+    status_code = status.HTTP_403_FORBIDDEN
+    default_detail = 'نقش ادمین قابلیت حذف شدن ندارد'  # noqa
+    default_code = 'admin_role_delete_exception'