What is a lot of fucking work!

db_addendum.py

@@ -0,0 +1,26 @@
+from psycopg.sql import SQL, Identifier, Literal, Composed
+from based.columns import (
+    IntegerColumnDefinition,
+)
+
+
+class UserRefColumnDefinition(IntegerColumnDefinition):
+    def __init__(self, name: str):
+        super().__init__(name)
+
+    def sql(self):
+        return SQL("{} INTEGER NOT NULL").format(Identifier(self.name))
+
+    def serialize(self):
+        return f"{self.name}:asset"
+
+
+class AssetRefColumnDefinition(IntegerColumnDefinition):
+    def __init__(self, name: str):
+        super().__init__(name)
+
+    def sql(self):
+        return SQL("{} INTEGER NOT NULL").format(Identifier(self.name))
+
+    def serialize(self):
+        return f"{self.name}:asset"