rewrite: Localisation support.

bot/settings/data.py

@@ -23,6 +23,15 @@ class ModelData:
     # High level data cache to use, leave as None to disable cache.
     _cache = None  # Map[id -> value]
 
+    @classmethod
+    def _read_from_row(cls, parent_id, row, **kwargs):
+        data = row[cls._column]
+
+        if cls._cache is not None:
+            cls._cache[parent_id] = data
+
+        return data
+
     @classmethod
     async def _reader(cls, parent_id, use_cache=True, **kwargs):
         """