wip - refactor of alias resolver - through models columns with fields are not properly handled yet

ormar/relations/alias_manager.py

@@ -34,6 +34,7 @@ class AliasManager:
 
     def __init__(self) -> None:
         self._aliases_new: Dict[str, str] = dict()
+        self._reversed_aliases: Dict[str, str] = dict()
 
     def __contains__(self, item: str) -> bool:
         return self._aliases_new.__contains__(item)
@@ -41,6 +42,14 @@ class AliasManager:
     def __getitem__(self, key: str) -> Any:
         return self._aliases_new.__getitem__(key)
 
+    @property
+    def reversed_aliases(self):
+        if self._reversed_aliases:
+            return self._reversed_aliases
+        reversed_aliases = {v: k for k, v in self._aliases_new.items()}
+        self._reversed_aliases = reversed_aliases
+        return self._reversed_aliases
+
     @staticmethod
     def prefixed_columns(
         alias: str, table: sqlalchemy.Table, fields: List = None