TMSS-272: try/except

SAS/TMSS/src/tmss/tmssapp/serializers/widgets.py

@@ -24,9 +24,12 @@ class JSONEditorField(serializers.JSONField):
             serializer = self.parent
             return fields.get_attribute(serializer.instance, self.schema_source.split('.'))
         except (AttributeError, TypeError):
-            if json_data and '$schema' in json_data:
-                schema_url = json_data['$schema']
-                return json.loads(requests.get(schema_url).text)
+            try:
+                if json_data and '$schema' in json_data:
+                    schema_url = json_data['$schema']
+                    return json.loads(requests.get(schema_url).text)
+            except (KeyError, TypeError):
+                pass
         return None
 
     def to_internal_value(self, data):