chore: cascade comment removal

ckanext/comments/logic/action.py

@@ -105,6 +105,7 @@ def thread_delete(context, data_dict):
     )
     if thread is None:
         raise tk.ObjectNotFound("Thread not found")
+
     context["session"].delete(thread)
     context["session"].commit()
     thread_dict = get_dictizer(type(thread))(thread, context)
@@ -242,6 +243,7 @@ def comment_delete(context, data_dict):
     )
     if comment is None:
         raise tk.ObjectNotFound("Comment not found")
+
     context["session"].delete(comment)
     context["session"].commit()
     comment_dict = get_dictizer(type(comment))(comment, context)

ckanext/comments/model/comment.py

@@ -5,7 +5,7 @@
 from typing import Callable, Optional, Union
 
 from sqlalchemy import Column, DateTime, ForeignKey, Text
-from sqlalchemy.orm import Query, foreign, relationship
+from sqlalchemy.orm import Query, backref, foreign, relationship
 
 import ckan.model as model
 from ckan.model.types import make_uuid
@@ -54,7 +54,11 @@ class State:
         single_parent=True,
     )
 
-    reply_to: Optional[Comment] = relationship("Comment", primaryjoin=id == reply_to_id)
+    reply_to: Optional[Comment] = relationship(
+        "Comment",
+        primaryjoin=id == reply_to_id,
+        cascade="all, delete-orphan"
+    )
 
     def __repr__(self):
         return (