The basics are now working for v3.

app/routers/api_crud_v3.py

@@ -539,6 +539,134 @@ async def get_child_obj(
         return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object with ID '{child_obj_id}' not found in database.")
 
 
+@router.patch('/{parent_obj_type}/{parent_obj_id}/{child_obj_type}/{child_obj_id}', response_model=Resp_Body_Base)
+async def patch_child_obj(
+        request: Request,
+        parent_obj_type: str = Path(min_length=2, max_length=50),
+        parent_obj_id: str = Path(min_length=11, max_length=22),
+        child_obj_type: str = Path(min_length=2, max_length=50),
+        child_obj_id: str = Path(min_length=11, max_length=22),
+        return_obj: Optional[bool] = True,
+        commons: Common_Route_Params = Depends(common_route_params),
+        ):
+    """
+    Update a child object by its ID, ensuring it belongs to the correct parent.
+    Examples:
+      - PATCH /v3/crud/journal/{journal_id}/journal_entry/{entry_id}
+    """
+    log.setLevel(logging.WARNING)
+    log.debug(locals())
+
+    obj_data = await request.json()
+
+    parent_obj_name = parent_obj_type
+    child_obj_name = child_obj_type
+
+    if parent_obj_name not in obj_type_kv_li:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message=f"Parent object type '{parent_obj_name}' not found.")
+    if child_obj_name not in obj_type_kv_li:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message=f"Child object type '{child_obj_name}' not found.")
+
+    # Resolve IDs
+    resolved_parent_id = redis_lookup_id_random(record_id_random=parent_obj_id, table_name=parent_obj_name)
+    if not resolved_parent_id:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Parent object '{parent_obj_name}' with ID '{parent_obj_id}' not found.")
+
+    resolved_child_id = redis_lookup_id_random(record_id_random=child_obj_id, table_name=child_obj_name)
+    if not resolved_child_id:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_name}' with ID '{child_obj_id}' not found.")
+
+    # Get config for child object
+    obj_cfg = obj_type_kv_li[child_obj_name]
+    table_name_update = obj_cfg.get('tbl_update', obj_cfg.get('tbl'))
+    table_name_select = obj_cfg.get('tbl_default', obj_cfg.get('tbl'))
+    output_model = obj_cfg.get('mdl_out', obj_cfg.get('mdl_default', obj_cfg.get('mdl')))
+
+    if not table_name_update or not table_name_select or not output_model:
+        return mk_resp(data=False, status_code=500, response=commons.response, status_message=f"Configuration for child object type '{child_obj_name}' is incomplete.")
+
+    # Verify parentage before updating
+    if existing_child := sql_select(table_name=table_name_select, record_id=resolved_child_id):
+        parent_fk_field_name = f'{parent_obj_name}_id'
+        if existing_child.get(parent_fk_field_name) != resolved_parent_id:
+            return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_id}' not found under parent '{parent_obj_id}'.")
+    else:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_id}' not found.")
+
+    # The sql_update function will only update the fields provided in the dict.
+    data_to_update = obj_data
+
+    if sql_update(data=data_to_update, table_name=table_name_update, record_id=resolved_child_id):
+        if return_obj:
+            if updated_child := sql_select(table_name=table_name_select, record_id=resolved_child_id):
+                resp_data = output_model(**updated_child).dict(by_alias=commons.by_alias, exclude_unset=commons.exclude_unset)
+                return mk_resp(data=resp_data, response=commons.response)
+            else:
+                return mk_resp(data=True, status_code=404, response=commons.response, status_message="Object updated but could not be retrieved post-update.")
+        else:
+            return mk_resp(data=True, response=commons.response, status_message="Object updated successfully.")
+    else:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message="Failed to update object in database.")
+
+
+@router.delete('/{parent_obj_type}/{parent_obj_id}/{child_obj_type}/{child_obj_id}', response_model=Resp_Body_Base)
+async def delete_child_obj(
+        parent_obj_type: str = Path(min_length=2, max_length=50),
+        parent_obj_id: str = Path(min_length=11, max_length=22),
+        child_obj_type: str = Path(min_length=2, max_length=50),
+        child_obj_id: str = Path(min_length=11, max_length=22),
+        commons: Common_Route_Params = Depends(common_route_params),
+        ):
+    """
+    Delete a child object by its ID, ensuring it belongs to the correct parent.
+    Examples:
+      - DELETE /v3/crud/journal/{journal_id}/journal_entry/{entry_id}
+    """
+    log.setLevel(logging.WARNING)
+    log.debug(locals())
+
+    parent_obj_name = parent_obj_type
+    child_obj_name = child_obj_type
+
+    if parent_obj_name not in obj_type_kv_li:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message=f"Parent object type '{parent_obj_name}' not found.")
+    if child_obj_name not in obj_type_kv_li:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message=f"Child object type '{child_obj_name}' not found.")
+
+    # Resolve IDs
+    resolved_parent_id = redis_lookup_id_random(record_id_random=parent_obj_id, table_name=parent_obj_name)
+    if not resolved_parent_id:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Parent object '{parent_obj_name}' with ID '{parent_obj_id}' not found.")
+
+    resolved_child_id = redis_lookup_id_random(record_id_random=child_obj_id, table_name=child_obj_name)
+    if not resolved_child_id:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_name}' with ID '{child_obj_id}' not found.")
+
+    # Get config for child object
+    obj_cfg = obj_type_kv_li[child_obj_name]
+    table_name_delete = obj_cfg.get('tbl_update', obj_cfg.get('tbl'))
+    table_name_select = obj_cfg.get('tbl_default', obj_cfg.get('tbl')) # For verification
+
+    if not table_name_delete or not table_name_select:
+        return mk_resp(data=False, status_code=500, response=commons.response, status_message=f"Configuration for child object type '{child_obj_name}' is incomplete.")
+
+    # Verify parentage before deleting
+    if existing_child := sql_select(table_name=table_name_select, record_id=resolved_child_id):
+        parent_fk_field_name = f'{parent_obj_name}_id'
+        if existing_child.get(parent_fk_field_name) != resolved_parent_id:
+            return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_id}' not found under parent '{parent_obj_id}'.")
+    else:
+        return mk_resp(data=False, status_code=404, response=commons.response, status_message=f"Child object '{child_obj_id}' not found.")
+
+    # If verification passes, delete the object
+    if sql_delete(table_name=table_name_delete, record_id=resolved_child_id):
+        return mk_resp(data=True, response=commons.response, status_message=f"Object with ID '{child_obj_id}' deleted successfully.")
+    else:
+        return mk_resp(data=False, status_code=400, response=commons.response, status_message="Failed to delete object in database.")
+
+
+
+