X-Git-Url: https://plomlompom.com/repos/%7B%7Bdb.prefix%7D%7D/todo?a=blobdiff_plain;f=plomtask%2Fconditions.py;h=cba606d1a71dd19a0e410677f0ee8fc528d5bdbf;hb=10af8a54a17047a4554d4b8d051a238271c74906;hp=45aa62b9b27a026c75549aea3350640c419d8a5e;hpb=6ec09c59e388711c43d9eba787c65ff8f60b9ce1;p=plomtask

diff --git a/plomtask/conditions.py b/plomtask/conditions.py
index 45aa62b..cba606d 100644
--- a/plomtask/conditions.py
+++ b/plomtask/conditions.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 from typing import Any
 from sqlite3 import Row
 from plomtask.db import DatabaseConnection, BaseModel
-from plomtask.misc import VersionedAttribute
+from plomtask.versioned_attributes import VersionedAttribute
 from plomtask.exceptions import HandledException
 
 
@@ -37,8 +37,13 @@ class Condition(BaseModel[int]):
         self.description.save(db_conn)
 
     def remove(self, db_conn: DatabaseConnection) -> None:
-        """Remove from DB, with dependencies."""
-        assert isinstance(self.id_, int)
+        """Remove from DB, with VersionedAttributes.
+
+        Checks for Todos and Processes that depend on Condition, prohibits
+        deletion if found.
+        """
+        if self.id_ is None:
+            raise HandledException('cannot remove unsaved item')
         for item in ('process', 'todo'):
             for attr in ('conditions', 'enables', 'disables'):
                 table_name = f'{item}_{attr}'