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Fix Nominatim stripping house numbers from location names

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Use addressdetails=1 to get structured address components and build
the name as "123 Example St" instead of splitting display_name on
the first comma (which isolated the house number from the road).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Kyle 2026-03-17 13:28:02 +08:00
parent a5118e36dc
commit 90bfd00a82
1 changed files with 21 additions and 4 deletions
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25
backend/app/routers/locations.py
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@ -57,7 +57,7 @@ async def search_locations(
# Nominatim proxy search (run in thread executor to avoid blocking event loop)
def _fetch_nominatim() -> list:
encoded_q = urllib.parse.quote(q)
url = f"https://nominatim.openstreetmap.org/search?q={encoded_q}&format=json&limit=5"
url = f"https://nominatim.openstreetmap.org/search?q={encoded_q}&format=json&addressdetails=1&limit=5"
req = urllib.request.Request(url, headers={"User-Agent": "UMBRA-LifeManager/1.0"})
with urllib.request.urlopen(req, timeout=5) as resp:
return json.loads(resp.read().decode())
@ -67,9 +67,26 @@ async def search_locations(
osm_data = await loop.run_in_executor(None, _fetch_nominatim)
for item in osm_data:
display_name = item.get("display_name", "")
name_parts = display_name.split(",", 1)
name = name_parts[0].strip()
address = name_parts[1].strip() if len(name_parts) > 1 else display_name
addr = item.get("address", {})
house_number = addr.get("house_number", "")
road = addr.get("road", "")
# Build a name that preserves the house number
if house_number and road:
name = f"{house_number} {road}"
elif road:
name = road
else:
# Fallback: first comma-separated segment
name = display_name.split(",", 1)[0].strip()
# Address: everything after the street portion
name_prefix = f"{house_number}, " if house_number else ""
road_prefix = f"{road}, " if road else ""
strip_prefix = name_prefix + road_prefix
if strip_prefix and display_name.startswith(strip_prefix):
address = display_name[len(strip_prefix):].strip()
else:
name_parts = display_name.split(",", 1)
address = name_parts[1].strip() if len(name_parts) > 1 else display_name
results.append(
LocationSearchResult(
source="nominatim",