Functions for bringing auxiliary data in the database up-to-date.
"""
from typing import MutableSequence, Tuple, Any, Type, Mapping, Sequence, List, cast
+import csv
+import gzip
import logging
-import subprocess
from textwrap import dedent
from pathlib import Path
from nominatim.config import Configuration
from nominatim.db.connection import Connection, connect
-from nominatim.db.utils import execute_file
+from nominatim.db.utils import execute_file, CopyBuffer
from nominatim.db.sql_preprocessor import SQLPreprocessor
-from nominatim.version import version_str
+from nominatim.version import NOMINATIM_VERSION
LOG = logging.getLogger()
('Search_NameOnlySearchFrequencyThreshold', 'SEARCH_NAME_ONLY_THRESHOLD', str),
('Use_US_Tiger_Data', 'USE_US_TIGER_DATA', bool),
('MapIcon_URL', 'MAPICON_URL', str),
+ ('Search_WithinCountries', 'SEARCH_WITHIN_COUNTRIES', bool),
)
Returns 0 if all was well and 1 if the importance file could not
be found. Throws an exception if there was an error reading the file.
"""
- datafile = data_path / 'wikimedia-importance.sql.gz'
+ if import_importance_csv(dsn, data_path / 'wikimedia-importance.csv.gz') == 0 \
+ or import_importance_sql(dsn, data_path / 'wikimedia-importance.sql.gz',
+ ignore_errors) == 0:
+ return 0
- if not datafile.exists():
+ return 1
+
+
+def import_importance_csv(dsn: str, data_file: Path) -> int:
+ """ Replace wikipedia importance table with data from a
+ single CSV file.
+
+ The file must be a gzipped CSV and have the following columns:
+ language, title, importance, wikidata_id
+
+ Other columns may be present but will be ignored.
+ """
+ if not data_file.exists():
+ return 1
+
+ # Only import the first occurance of a wikidata ID.
+ # This keeps indexes and table small.
+ wd_done = set()
+
+ with connect(dsn) as conn:
+ with conn.cursor() as cur:
+ cur.drop_table('wikipedia_article')
+ cur.drop_table('wikipedia_redirect')
+ cur.drop_table('wikimedia_importance')
+ cur.execute("""CREATE TABLE wikimedia_importance (
+ language TEXT NOT NULL,
+ title TEXT NOT NULL,
+ importance double precision NOT NULL,
+ wikidata TEXT
+ ) """)
+
+ with gzip.open(str(data_file), 'rt') as fd, CopyBuffer() as buf:
+ for row in csv.DictReader(fd, delimiter='\t', quotechar='|'):
+ wd_id = int(row['wikidata_id'][1:])
+ buf.add(row['language'], row['title'], row['importance'],
+ None if wd_id in wd_done else row['wikidata_id'])
+ wd_done.add(wd_id)
+
+ if buf.size() > 10000000:
+ with conn.cursor() as cur:
+ buf.copy_out(cur, 'wikimedia_importance',
+ columns=['language', 'title', 'importance',
+ 'wikidata'])
+
+ with conn.cursor() as cur:
+ buf.copy_out(cur, 'wikimedia_importance',
+ columns=['language', 'title', 'importance', 'wikidata'])
+
+ with conn.cursor() as cur:
+ cur.execute("""CREATE INDEX IF NOT EXISTS idx_wikimedia_importance_title
+ ON wikimedia_importance (title)""")
+ cur.execute("""CREATE INDEX IF NOT EXISTS idx_wikimedia_importance_wikidata
+ ON wikimedia_importance (wikidata)
+ WHERE wikidata is not null""")
+
+ conn.commit()
+
+ return 0
+
+
+def import_importance_sql(dsn: str, data_file: Path, ignore_errors: bool) -> int:
+ """ Replace wikipedia importance table with data from an SQL file.
+ """
+ if not data_file.exists():
return 1
pre_code = """BEGIN;
DROP TABLE IF EXISTS "wikipedia_article";
- DROP TABLE IF EXISTS "wikipedia_redirect"
+ DROP TABLE IF EXISTS "wikipedia_redirect";
+ DROP TABLE IF EXISTS "wikipedia_importance";
"""
post_code = "COMMIT"
- execute_file(dsn, datafile, ignore_errors=ignore_errors,
+ execute_file(dsn, data_file, ignore_errors=ignore_errors,
pre_code=pre_code, post_code=post_code)
return 0
-def import_osm_views_geotiff(dsn: str, data_path: Path) -> int:
- """ Replaces the OSM views table with new data.
- Returns 0 if all was well and 1 if the OSM views GeoTIFF file could not
+def import_secondary_importance(dsn: str, data_path: Path, ignore_errors: bool = False) -> int:
+ """ Replaces the secondary importance raster data table with new data.
+
+ Returns 0 if all was well and 1 if the raster SQL file could not
be found. Throws an exception if there was an error reading the file.
"""
- datafile = data_path / 'osmviews.tiff'
+ datafile = data_path / 'secondary_importance.sql.gz'
if not datafile.exists():
return 1
- with connect(dsn) as conn:
+ with connect(dsn) as conn:
postgis_version = conn.postgis_version_tuple()
if postgis_version[0] < 3:
+ LOG.error('PostGIS version is too old for using OSM raster data.')
return 2
- with conn.cursor() as cur:
- cur.drop_table("osm_views")
- cur.drop_table("osm_views_stat")
-
- # -ovr: 6 -> zoom 12, 5 -> zoom 13, 4 -> zoom 14, 3 -> zoom 15
- reproject_geotiff = f"gdalwarp -q -multi -ovr 3 -overwrite \
- -co COMPRESS=LZW -tr 0.01 0.01 -t_srs EPSG:4326 {datafile} raster2import.tiff"
- subprocess.run(["/bin/bash", "-c" , reproject_geotiff], check=True)
-
- tile_size = 256
- import_geotiff = f"raster2pgsql -I -C -Y -t {tile_size}x{tile_size} raster2import.tiff \
- public.osm_views | psql {dsn} > /dev/null"
- subprocess.run(["/bin/bash", "-c" , import_geotiff], check=True)
-
- cleanup = "rm raster2import.tiff"
- subprocess.run(["/bin/bash", "-c" , cleanup], check=True)
-
- # To normalize osm views data, the max view value is needed
- cur.execute(f"""
- CREATE TABLE osm_views_stat AS (
- SELECT MAX(ST_Value(osm_views.rast, 1, x, y)) AS max_views_count
- FROM osm_views CROSS JOIN
- generate_series(1, {tile_size}) As x
- CROSS JOIN generate_series(1, {tile_size}) As y
- WHERE x <= ST_Width(rast) AND y <= ST_Height(rast));
- """)
- conn.commit()
+ execute_file(dsn, datafile, ignore_errors=ignore_errors)
return 0
cur.execute("""
UPDATE placex SET (wikipedia, importance) =
(SELECT wikipedia, importance
- FROM compute_importance(extratags, country_code, osm_type, osm_id, centroid))
+ FROM compute_importance(extratags, country_code, rank_search, centroid))
""")
cur.execute("""
UPDATE placex s SET wikipedia = d.wikipedia, importance = d.importance
def setup_website(basedir: Path, config: Configuration, conn: Connection) -> None:
""" Create the website script stubs.
"""
+ if config.lib_dir.php is None:
+ LOG.info("Python frontend does not require website setup. Skipping.")
+ return
+
if not basedir.exists():
LOG.info('Creating website directory.')
basedir.mkdir()
- template = dedent(f"""\
+ assert config.project_dir is not None
+ basedata = dedent(f"""\
<?php
@define('CONST_Debug', $_GET['debug'] ?? false);
@define('CONST_LibDir', '{config.lib_dir.php}');
@define('CONST_TokenizerDir', '{config.project_dir / 'tokenizer'}');
- @define('CONST_NominatimVersion', '{version_str()}');
+ @define('CONST_NominatimVersion', '{NOMINATIM_VERSION!s}');
""")
for php_name, conf_name, var_type in PHP_CONST_DEFS:
varout = _quote_php_variable(var_type, config, conf_name)
- template += f"@define('CONST_{php_name}', {varout});\n"
+ basedata += f"@define('CONST_{php_name}', {varout});\n"
- template += f"\nrequire_once('{config.lib_dir.php}/website/{{}}');\n"
+ template = "\nrequire_once(CONST_LibDir.'/website/{}');\n"
search_name_table_exists = bool(conn and conn.table_exists('search_name'))
for script in WEBSITE_SCRIPTS:
if not search_name_table_exists and script == 'search.php':
- (basedir / script).write_text(template.format('reverse-only-search.php'), 'utf-8')
+ out = template.format('reverse-only-search.php')
else:
- (basedir / script).write_text(template.format(script), 'utf-8')
+ out = template.format(script)
+
+ (basedir / script).write_text(basedata + out, 'utf-8')
def invalidate_osm_object(osm_type: str, osm_id: int, conn: Connection,
projects / nominatim.git / blobdiff