Implementation of place lookup by ID.
"""
from typing import Optional
+import datetime as dt
import sqlalchemy as sa
from nominatim.api.connection import SearchConnection
import nominatim.api.types as ntyp
import nominatim.api.results as nres
+from nominatim.api.logging import log
def _select_column_geometry(column: SaColumn,
geometry_output: ntyp.GeometryFormat) -> SaLabel:
""" Search for the given place in the placex table and return the
base information.
"""
+ log().section("Find in placex table")
t = conn.t.placex
sql = sa.select(t.c.place_id, t.c.osm_type, t.c.osm_id, t.c.name,
t.c.class_, t.c.type, t.c.admin_level,
t.c.importance, t.c.wikipedia, t.c.indexed_date,
t.c.parent_place_id, t.c.rank_address, t.c.rank_search,
t.c.linked_place_id,
- sa.func.ST_X(t.c.centroid).label('x'),
- sa.func.ST_Y(t.c.centroid).label('y'),
+ t.c.centroid,
_select_column_geometry(t.c.geometry, details.geometry_output))
if isinstance(place, ntyp.PlaceID):
""" Search for the given place in the osmline table and return the
base information.
"""
+ log().section("Find in interpolation table")
t = conn.t.osmline
sql = sa.select(t.c.place_id, t.c.osm_id, t.c.parent_place_id,
t.c.indexed_date, t.c.startnumber, t.c.endnumber,
t.c.step, t.c.address, t.c.postcode, t.c.country_code,
- sa.func.ST_X(sa.func.ST_Centroid(t.c.linegeo)).label('x'),
- sa.func.ST_Y(sa.func.ST_Centroid(t.c.linegeo)).label('y'),
+ t.c.linegeo.ST_Centroid().label('centroid'),
_select_column_geometry(t.c.linegeo, details.geometry_output))
if isinstance(place, ntyp.PlaceID):
return (await conn.execute(sql)).one_or_none()
+async def find_in_tiger(conn: SearchConnection, place: ntyp.PlaceRef,
+ details: ntyp.LookupDetails) -> Optional[SaRow]:
+ """ Search for the given place in the table of Tiger addresses and return
+ the base information. Only lookup by place ID is supported.
+ """
+ log().section("Find in TIGER table")
+ t = conn.t.tiger
+ parent = conn.t.placex
+ sql = sa.select(t.c.place_id, t.c.parent_place_id,
+ parent.c.osm_type, parent.c.osm_id,
+ t.c.startnumber, t.c.endnumber, t.c.step,
+ t.c.postcode,
+ t.c.linegeo.ST_Centroid().label('centroid'),
+ _select_column_geometry(t.c.linegeo, details.geometry_output))
+
+ if isinstance(place, ntyp.PlaceID):
+ sql = sql.where(t.c.place_id == place.place_id)\
+ .join(parent, t.c.parent_place_id == parent.c.place_id, isouter=True)
+ else:
+ return None
+
+ return (await conn.execute(sql)).one_or_none()
+
+
+async def find_in_postcode(conn: SearchConnection, place: ntyp.PlaceRef,
+ details: ntyp.LookupDetails) -> Optional[SaRow]:
+ """ Search for the given place in the postcode table and return the
+ base information. Only lookup by place ID is supported.
+ """
+ log().section("Find in postcode table")
+ t = conn.t.postcode
+ sql = sa.select(t.c.place_id, t.c.parent_place_id,
+ t.c.rank_search, t.c.rank_address,
+ t.c.indexed_date, t.c.postcode, t.c.country_code,
+ t.c.geometry.label('centroid'),
+ _select_column_geometry(t.c.geometry, details.geometry_output))
+
+ if isinstance(place, ntyp.PlaceID):
+ sql = sql.where(t.c.place_id == place.place_id)
+ else:
+ return None
+
+ return (await conn.execute(sql)).one_or_none()
+
+
async def get_place_by_id(conn: SearchConnection, place: ntyp.PlaceRef,
- details: ntyp.LookupDetails) -> Optional[nres.SearchResult]:
+ details: ntyp.LookupDetails) -> Optional[nres.DetailedResult]:
""" Retrieve a place with additional details from the database.
"""
+ log().function('get_place_by_id', place=place, details=details)
+
if details.geometry_output and details.geometry_output != ntyp.GeometryFormat.GEOJSON:
raise ValueError("lookup only supports geojosn polygon output.")
row = await find_in_placex(conn, place, details)
+ log().var_dump('Result (placex)', row)
if row is not None:
- result = nres.create_from_placex_row(row=row)
- await nres.add_result_details(conn, result, details)
- return result
-
- row = await find_in_osmline(conn, place, details)
- if row is not None:
- result = nres.create_from_osmline_row(row=row)
- await nres.add_result_details(conn, result, details)
- return result
-
- # Nothing found under this ID.
- return None
+ result = nres.create_from_placex_row(row, nres.DetailedResult)
+ else:
+ row = await find_in_osmline(conn, place, details)
+ log().var_dump('Result (osmline)', row)
+ if row is not None:
+ result = nres.create_from_osmline_row(row, nres.DetailedResult)
+ else:
+ row = await find_in_postcode(conn, place, details)
+ log().var_dump('Result (postcode)', row)
+ if row is not None:
+ result = nres.create_from_postcode_row(row, nres.DetailedResult)
+ else:
+ row = await find_in_tiger(conn, place, details)
+ log().var_dump('Result (tiger)', row)
+ if row is not None:
+ result = nres.create_from_tiger_row(row, nres.DetailedResult)
+ else:
+ return None
+
+ # add missing details
+ assert result is not None
+ result.parent_place_id = row.parent_place_id
+ result.linked_place_id = getattr(row, 'linked_place_id', None)
+ result.admin_level = getattr(row, 'admin_level', 15)
+ indexed_date = getattr(row, 'indexed_date', None)
+ if indexed_date is not None:
+ result.indexed_date = indexed_date.replace(tzinfo=dt.timezone.utc)
+
+ await nres.add_result_details(conn, result, details)
+
+ return result
projects / nominatim.git / blobdiff