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reverse: only return housenumbers near street

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This commit is contained in:
Sarah Hoffmann
2025-12-07 11:00:23 +01:00
parent 4cfc1792fb
commit 35060164ab
2 changed files with 33 additions and 9 deletions
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19
src/nominatim_api/reverse.py
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@@ -210,7 +210,10 @@ class ReverseGeocoder:
sa.func.first_value(inner.c.distance)
.over(order_by=inner.c.distance)
.label('_min_distance'),
sa.func.first_value(inner.c._geometry.ST_ClosestPoint(WKT_PARAM))
sa.func.first_value(
sa.case((inner.c.rank_search <= 27,
inner.c._geometry.ST_ClosestPoint(WKT_PARAM)),
else_=None))
.over(order_by=inner.c.distance)
.label('_closest_point'),
sa.func.first_value(sa.case((sa.or_(inner.c.rank_search <= 27,
@@ -221,8 +224,10 @@ class ReverseGeocoder:
.subquery()
outer = sa.select(*(c for c in windowed.c if not c.key.startswith('_')),
windowed.c.centroid.ST_Distance(windowed.c._closest_point)
.label('best_distance'),
sa.case((sa.or_(windowed.c._closest_point == None,
windowed.c.housenumber == None), None),
else_=windowed.c.centroid.ST_Distance(windowed.c._closest_point))
.label('distance_from_best'),
sa.case((sa.or_(windowed.c._best_geometry == None,
windowed.c.rank_search <= 27,
windowed.c.osm_type != 'N'), False),
@@ -337,13 +342,13 @@ class ReverseGeocoder:
# If the closest result was a street but an address was requested,
# see if we can refine the result with a housenumber closeby.
elif parent_street is not None \
and row.rank_address > 27 \
and row.best_distance < 0.001 \
and (hnr_distance is None or hnr_distance > row.best_distance) \
and row.distance_from_best is not None \
and row.distance_from_best < 0.001 \
and (hnr_distance is None or hnr_distance > row.distance_from_best) \
and row.parent_place_id == parent_street:
log().var_dump('Housenumber to closest result', row)
result = row
hnr_distance = row.best_distance
hnr_distance = row.distance_from_best
distance = row.distance
# If the closest object is inside an area, then check if there is
# a POI nearby and return that with preference.