From 1197919173724a22a1a3d9f4b2658ccb7aaf26b4 Mon Sep 17 00:00:00 2001
From: Johannes Baumeister <jba@enwelo.de>
Date: Mon, 20 Apr 2026 09:09:04 +0200
Subject: [PATCH] CRITICAL FIX: Restore case-sensitive column naming and double
 quotes in SQL

---
 server.js | 63 ++++++++++++++++++++++++++++---------------------------
 1 file changed, 32 insertions(+), 31 deletions(-)

diff --git a/server.js b/server.js
index d3b57b1..b0efa09 100644
--- a/server.js
+++ b/server.js
@@ -46,20 +46,20 @@ app.get('/api/owners', async (req, res) => {
   try {
     await setSchema(client);
     
-    // Using mapping with aliases to keep the frontend compatible
+    // Using exact quoted names to preserve case-sensitivity
     const query = `
       SELECT 
-        id, 
-        nachname AS "Nachname", 
-        vorname AS "Vorname", 
-        ort AS "Ort", 
-        flur AS "Flur", 
-        flurstueck AS "Flurstueck", 
-        gemarkung AS "Gemarkung", 
-        status, 
-        notiz,
-        str_hnr AS "Str_HNr",
-        ST_AsGeoJSON(ST_Transform(geom, 4326)) as geometry
+        "id", 
+        "Nachname", 
+        "Vorname", 
+        "Ort", 
+        "Flur", 
+        "Flurstueck", 
+        "Gemarkung", 
+        "status" as "status", 
+        "notiz" as "notiz",
+        "Str_HNr",
+        ST_AsGeoJSON(ST_Transform("geom", 4326)) as geometry
       FROM "eigentuemerdaten"
     `;
     const result = await client.query(query);
@@ -92,9 +92,9 @@ app.get('/api/usage', async (req, res) => {
     await setSchema(client);
     const query = `
       SELECT 
-        id,
-        nutzart AS "nutzart",
-        ST_AsGeoJSON(ST_Transform(geom, 4326)) as geometry
+        "id",
+        "nutzart" as "nutzart",
+        ST_AsGeoJSON(ST_Transform("geom", 4326)) as geometry
       FROM "nutzung"
     `;
     const result = await client.query(query);
@@ -126,9 +126,9 @@ app.get('/api/wea', async (req, res) => {
     await setSchema(client);
     const query = `
       SELECT 
-        id, 
-        name AS "Name",
-        ST_AsGeoJSON(ST_Transform(geom, 4326)) as geometry
+        "id", 
+        "Name",
+        ST_AsGeoJSON(ST_Transform("geom", 4326)) as geometry
       FROM "wea"
     `;
     const result = await client.query(query);
@@ -159,8 +159,8 @@ app.get('/api/infrastructure', async (req, res) => {
     await setSchema(client);
     const query = `
       SELECT 
-        id, 
-        ST_AsGeoJSON(ST_Transform(geom, 4326)) as geometry
+        "id", 
+        ST_AsGeoJSON(ST_Transform("geom", 4326)) as geometry
       FROM "infrastruktur"
     `;
     const result = await client.query(query);
@@ -191,10 +191,10 @@ app.get('/api/variants', async (req, res) => {
     await setSchema(client);
     const query = `
       SELECT 
-        id, name, variante AS "Variante",
-        ST_AsGeoJSON(ST_Transform(ST_SetSRID(geom, 25832), 4326)) as geometry
+        "id", "name", "Variante",
+        ST_AsGeoJSON(ST_Transform(ST_SetSRID("geom", 25832), 4326)) as geometry
       FROM "kabeltrasse"
-      ORDER BY id DESC
+      ORDER BY "id" DESC
     `;
     const result = await client.query(query);
     
@@ -233,18 +233,19 @@ app.post('/api/variants', async (req, res) => {
     const varianteValue = properties.Variante || (properties.name ? properties.name.replace('Variante ', '') : 'A');
     const geoJsonStr = JSON.stringify(geometry);
 
+    // Using exact quoted column names for the UPSERT
     const upsertQuery = `
-      INSERT INTO "kabeltrasse" (geom, name, variante)
+      INSERT INTO "kabeltrasse" ("geom", "name", "Variante")
       VALUES (
         ST_MakeValid(ST_Transform(ST_SetSRID(ST_GeomFromGeoJSON($1), 4326), 25832)), 
         $2, 
         $3
       )
-      ON CONFLICT (variante) 
+      ON CONFLICT ("Variante") 
       DO UPDATE SET 
-        geom = EXCLUDED.geom,
-        name = EXCLUDED.name
-      RETURNING id
+        "geom" = EXCLUDED."geom",
+        "name" = EXCLUDED."name"
+      RETURNING "id"
     `;
     
     const upsertRes = await client.query(upsertQuery, [geoJsonStr, routeName, varianteValue]);
@@ -266,9 +267,9 @@ app.patch('/api/owners/:id', async (req, res) => {
     await setSchema(client);
     const query = `
       UPDATE "eigentuemerdaten"
-      SET status = $1, notiz = $2
-      WHERE id = $3
-      RETURNING id;
+      SET "status" = $1, "notiz" = $2
+      WHERE "id" = $3
+      RETURNING "id";
     `;
     const result = await client.query(query, [status, notiz, id]);
     if (result.rowCount === 0) return res.status(404).json({ error: 'Owner not found' });