From 32aa8777971384d1dfe99f8cc7b37b5fbfd8982f Mon Sep 17 00:00:00 2001
From: Colin Maudry <colin@maudry.com>
Date: Wed, 18 Mar 2026 22:40:28 +0100
Subject: [PATCH] fix: guard against missing titulaire_distance column in
 get_distance_histogram

---
 src/figures.py | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/figures.py b/src/figures.py
index ea8d905..14b624a 100644
--- a/src/figures.py
+++ b/src/figures.py
@@ -580,12 +580,15 @@ def make_clusters_map(region: dict) -> dl.Map:
 
 
 def get_distance_histogram(lff: pl.LazyFrame) -> dcc.Graph:
-    dff = (
-        lff.select("titulaire_distance")
-        .drop_nulls()
-        .filter(pl.col("titulaire_distance") > 0)
-        .collect(engine="streaming")
-    )
+    if "titulaire_distance" not in lff.collect_schema().names():
+        dff = pl.DataFrame({"titulaire_distance": pl.Series([], dtype=pl.Float64)})
+    else:
+        dff = (
+            lff.select("titulaire_distance")
+            .drop_nulls()
+            .filter(pl.col("titulaire_distance") > 0)
+            .collect(engine="streaming")
+        )
     dff = dff.with_columns(pl.col("titulaire_distance").log(10))
     fig = px.histogram(
         dff,