From 45c939ef473a74cc37c889722cdc46b7ea7c282a Mon Sep 17 00:00:00 2001
From: jobvengalil <147741937+jobvengalil@users.noreply.github.com>
Date: Fri, 24 Apr 2026 13:02:43 -0400
Subject: [PATCH] fix/CSV Export

---
 backend/app/routers/schedule.py | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/backend/app/routers/schedule.py b/backend/app/routers/schedule.py
index 83d64bf..77e3319 100644
--- a/backend/app/routers/schedule.py
+++ b/backend/app/routers/schedule.py
@@ -159,14 +159,17 @@ def _safe(v: object) -> str:
     )
 
     for section in sections:
-        raw_tb = tb_by_id.get(section.time_block.time_block_id)
-        if raw_tb and raw_tb.block_group:
-            siblings = tb_by_group.get(raw_tb.block_group, [raw_tb])
-            time_block = " / ".join(f"{p.meeting_days} {_fmt(p.start_time)}-{_fmt(p.end_time)}" for p in siblings)
-        elif raw_tb:
-            time_block = f"{raw_tb.meeting_days} {_fmt(raw_tb.start_time)}-{_fmt(raw_tb.end_time)}"
+        if section.time_block is None:
+            time_block = ""
         else:
-            time_block = f"{section.time_block.days} {section.time_block.start_time}-{section.time_block.end_time}"
+            raw_tb = tb_by_id.get(section.time_block.time_block_id)
+            if raw_tb and raw_tb.block_group:
+                siblings = tb_by_group.get(raw_tb.block_group, [raw_tb])
+                time_block = " / ".join(f"{p.meeting_days} {_fmt(p.start_time)}-{_fmt(p.end_time)}" for p in siblings)
+            elif raw_tb:
+                time_block = f"{raw_tb.meeting_days} {_fmt(raw_tb.start_time)}-{_fmt(raw_tb.end_time)}"
+            else:
+                time_block = f"{section.time_block.days} {section.time_block.start_time}-{section.time_block.end_time}"
 
         instructors = sorted(section.instructors, key=lambda i: (i.last_name, i.nuid))
         if instructors: