Implementing, using new FieldMask class (#39) (#43)

Author: sky-sharma

clearblade/cloud/iot_v1/device_types.py

@@ -43,7 +43,7 @@
 """
 
 from typing import List
-from .resources import GatewayType, LogLevel, PublicKeyFormat, PublicKeyCredential, DeviceCredential
+from .resources import GatewayType, LogLevel, PublicKeyFormat, PublicKeyCredential, DeviceCredential, FieldMask
 from .utils import get_value
 import os
 from proto.datetime_helpers import DatetimeWithNanoseconds
@@ -591,7 +591,7 @@ def _prepare_params_for_list(self):
         if self.device_ids:
             params['deviceIds'] = self.device_ids
         if self.field_mask:
-            params['fieldMask'] = self.field_mask
+            params['fieldMask'] = FieldMask.convert_fieldmask_for_list(self.field_mask)
         if self.gateway_list_options :
             if 'associationsDeviceId' in self.gateway_list_options:
                 params['gatewayListOptions.associationsDeviceId'] = self.gateway_list_options['associationsDeviceId']

clearblade/cloud/iot_v1/resources.py

@@ -168,4 +168,22 @@ def convert_credentials_for_create_update(cls, credentials):
             if updateDeviceCredential:
                 credentials[index] = credential
 
-        return credentials
+        return credentials
+
+class FieldMask():
+    def __init__(self, paths: [str]):
+        self.paths = paths
+    
+    def __getitem__(self, arg):
+        return getattr(self, arg)
+
+    def get(self, arg):
+        return getattr(self, arg)
+
+    @classmethod
+    def convert_fieldmask_for_list(cls, field_mask):
+        if (isinstance(field_mask, FieldMask)):
+            field_mask = field_mask.__dict__
+            if 'paths' in field_mask:
+                field_mask = field_mask['paths']
+        return field_mask