wikipedia TEXT
);
+{% if 'wikimedia_importance' in db.tables %}
+
+CREATE OR REPLACE FUNCTION get_wikipedia_match(extratags HSTORE, country_code varchar(2))
+ RETURNS wikipedia_article_match
+ AS $$
+DECLARE
+ i INT;
+ wiki_article_title TEXT;
+ wiki_article_language TEXT;
+ result wikipedia_article_match;
+ entry RECORD;
+BEGIN
+ IF extratags ? 'wikipedia' and strpos(extratags->'wikipedia', ':') IN (3,4) THEN
+ wiki_article_language := lower(trim(split_part(extratags->'wikipedia', ':', 1)));
+ wiki_article_title := trim(substr(extratags->'wikipedia',
+ strpos(extratags->'wikipedia', ':') + 1));
+
+ FOR result IN
+ SELECT language, title, importance FROM wikimedia_importance
+ WHERE language = wiki_article_language
+ and title = replace(wiki_article_title, ' ', '_')
+ LOOP
+ RETURN result;
+ END LOOP;
+ END IF;
+
+ FOREACH wiki_article_language IN ARRAY ARRAY['ar','bg','ca','cs','da','de','en','es','eo','eu','fa','fr','ko','hi','hr','id','it','he','lt','hu','ms','nl','ja','no','pl','pt','kk','ro','ru','sk','sl','sr','fi','sv','tr','uk','vi','vo','war','zh']
+ LOOP
+ IF extratags ? ('wikipedia:' || wiki_article_language) THEN
+ wiki_article_title := extratags->('wikipedia:' || wiki_article_language);
+
+ FOR result IN
+ SELECT language, title, importance FROM wikimedia_importance
+ WHERE language = wiki_article_language
+ and title = replace(wiki_article_title, ' ', '_')
+ LOOP
+ RETURN result;
+ END LOOP;
+ END IF;
+
+ END LOOP;
+
+ RETURN NULL;
+END;
+$$
+LANGUAGE plpgsql IMMUTABLE STRICT;
+
+{% else %}
-- See: http://stackoverflow.com/questions/6410088/how-can-i-mimic-the-php-urldecode-function-in-postgresql
CREATE OR REPLACE FUNCTION decode_url_part(p varchar)
$$
LANGUAGE plpgsql STABLE;
+{% endif %}
CREATE OR REPLACE FUNCTION compute_importance(extratags HSTORE,
country_code varchar(2),
-- Nothing? Then try with the wikidata tag.
IF result.importance is null AND extratags ? 'wikidata' THEN
- FOR match IN SELECT * FROM wikipedia_article
- WHERE wd_page_title = extratags->'wikidata'
- ORDER BY language = 'en' DESC, langcount DESC LIMIT 1
+ FOR match IN
+{% if 'wikimedia_importance' in db.tables %}
+ SELECT * FROM wikimedia_importance
+ WHERE wikidata = extratags->'wikidata'
+ LIMIT 1
+{% else %}
+ SELECT * FROM wikipedia_article
+ WHERE wd_page_title = extratags->'wikidata'
+ ORDER BY language = 'en' DESC, langcount DESC LIMIT 1
+{% endif %}
LOOP
result.importance := match.importance;
result.wikipedia := match.language || ':' || match.title;
DROP SEQUENCE IF EXISTS file;
CREATE SEQUENCE file start 1;
--- null table so it won't error
--- deliberately no drop - importing the table is expensive and static, if it is already there better to avoid removing it
-CREATE TABLE IF NOT EXISTS wikipedia_article (
- language text NOT NULL,
- title text NOT NULL,
- langcount integer,
- othercount integer,
- totalcount integer,
- lat double precision,
- lon double precision,
- importance double precision,
- osm_type character(1),
- osm_id bigint,
- wd_page_title text,
- instance_of text
-);
-
-CREATE TABLE IF NOT EXISTS wikipedia_redirect (
- language text,
- from_title text,
- to_title text
-);
+{% if 'wikimedia_importance' not in db.tables and 'wikipedia_article' not in db.tables %}
+-- create dummy tables here, if nothing was imported
+CREATE TABLE wikimedia_importance (
+ language TEXT NOT NULL,
+ title TEXT NOT NULL,
+ importance double precision NOT NULL,
+ wikidata TEXT
+) {{db.tablespace.address_data}};
+{% endif %}
-- osm2pgsql does not create indexes on the middle tables for Nominatim
-- Add one for lookup of associated street relations.
from ..tools import refresh, postcodes
from ..indexer.indexer import Indexer
+ need_function_refresh = args.functions
if args.postcodes:
if postcodes.can_compute(args.config.get_libpq_dsn()):
args.project_dir) > 0:
LOG.fatal('FATAL: Cannot update secondary importance raster data')
return 1
-
- if args.functions:
- LOG.warning('Create functions')
- with connect(args.config.get_libpq_dsn()) as conn:
- refresh.create_functions(conn, args.config,
- args.diffs, args.enable_debug_statements)
- self._get_tokenizer(args.config).update_sql_functions(args.config)
+ need_function_refresh = True
if args.wiki_data:
data_path = Path(args.config.WIKIPEDIA_DATA_PATH
data_path) > 0:
LOG.fatal('FATAL: Wikipedia importance file not found in %s', data_path)
return 1
+ need_function_refresh = True
+
+ if need_function_refresh:
+ LOG.warning('Create functions')
+ with connect(args.config.get_libpq_dsn()) as conn:
+ refresh.create_functions(conn, args.config,
+ args.diffs, args.enable_debug_statements)
+ self._get_tokenizer(args.config).update_sql_functions(args.config)
- # Attention: importance MUST come after wiki data import.
+ # Attention: importance MUST come after wiki data import and after functions.
if args.importance:
LOG.warning('Update importance values for database')
with connect(args.config.get_libpq_dsn()) as conn:
return self
+ def size(self) -> int:
+ """ Return the number of bytes the buffer currently contains.
+ """
+ return self.buffer.tell()
+
def __exit__(self, exc_type: Any, exc_value: Any, traceback: Any) -> None:
if self.buffer is not None:
self.buffer.close()
def copy_out(self, cur: Cursor, table: str, columns: Optional[Iterable[str]] = None) -> None:
""" Copy all collected data into the given table.
+
+ The buffer is empty and reusable after this operation.
"""
if self.buffer.tell() > 0:
self.buffer.seek(0)
cur.copy_from(self.buffer, table, columns=columns)
+ self.buffer = io.StringIO()
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
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 NOMINATIM_VERSION
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_secondary_importance(dsn: str, data_path: Path, ignore_errors: bool = False) -> int:
""" Replaces the secondary importance raster data table with new data.
('website', 'setup_website'),
])
def test_refresh_command(self, mock_func_factory, command, func):
+ mock_func_factory(nominatim.tools.refresh, 'create_functions')
func_mock = mock_func_factory(nominatim.tools.refresh, func)
assert self.call_nominatim('refresh', '--' + command) == 0
assert self.call_nominatim('refresh', '--wiki-data') == 1
+
def test_refresh_secondary_importance_file_not_found(self):
assert self.call_nominatim('refresh', '--secondary-importance') == 1
assert mocks[1].called == 1
- def test_refresh_importance_computed_after_wiki_import(self, monkeypatch):
+ def test_refresh_importance_computed_after_wiki_import(self, monkeypatch, mock_func_factory):
calls = []
monkeypatch.setattr(nominatim.tools.refresh, 'import_wikipedia_articles',
lambda *args, **kwargs: calls.append('import') or 0)
monkeypatch.setattr(nominatim.tools.refresh, 'recompute_importance',
lambda *args, **kwargs: calls.append('update'))
+ func_mock = mock_func_factory(nominatim.tools.refresh, 'create_functions')
assert self.call_nominatim('refresh', '--importance', '--wiki-data') == 0
assert calls == ['import', 'update']
+ assert func_mock.called == 1
@pytest.mark.parametrize('params', [('--data-object', 'w234'),
('--data-object', 'N23', '--data-object', 'N24'),
projects / nominatim.git / commitdiff