2 Functions for importing and managing static country information.
6 from nominatim.db import utils as db_utils
7 from nominatim.db.connection import connect
10 """ Caches country-specific properties from the configuration file.
17 def load(self, config):
18 """ Load the country properties from the configuration files,
19 if they are not loaded yet.
22 self._info = config.load_sub_configuration('country_settings.yaml')
23 # Convert languages into a list for simpler handling.
24 for prop in self._info.values():
25 if 'languages' not in prop:
26 prop['languages'] = []
27 elif not isinstance(prop['languages'], list):
28 prop['languages'] = [x.strip()
29 for x in prop['languages'].split(',')]
33 """ Return tuples of (country_code, property dict) as iterable.
35 return self._info.items()
38 _COUNTRY_INFO = _CountryInfo()
40 def setup_country_config(config):
41 """ Load country properties from the configuration file.
42 Needs to be called before using any other functions in this
45 _COUNTRY_INFO.load(config)
49 """ Iterate over country code and properties.
51 return _COUNTRY_INFO.items()
54 def setup_country_tables(dsn, sql_dir, ignore_partitions=False):
55 """ Create and populate the tables with basic static data that provides
56 the background for geocoding. Data is assumed to not yet exist.
58 db_utils.execute_file(dsn, sql_dir / 'country_name.sql')
59 db_utils.execute_file(dsn, sql_dir / 'country_osm_grid.sql.gz')
62 for ccode, props in _COUNTRY_INFO.items():
63 if ccode is not None and props is not None:
67 partition = props.get('partition')
68 lang = props['languages'][0] if len(props['languages']) == 1 else None
69 params.append((ccode, partition, lang))
71 with connect(dsn) as conn:
72 with conn.cursor() as cur:
74 """ UPDATE country_name
75 SET partition = part, country_default_language_code = lang
76 FROM (VALUES %s) AS v (cc, part, lang)
77 WHERE country_code = v.cc""", params)
81 def create_country_names(conn, tokenizer, languages=None):
82 """ Add default country names to search index. `languages` is a comma-
83 separated list of language codes as used in OSM. If `languages` is not
84 empty then only name translations for the given languages are added
88 languages = languages.split(',')
90 def _include_key(key):
91 return key == 'name' or \
92 (key.startswith('name:') and (not languages or key[5:] in languages))
94 with conn.cursor() as cur:
95 psycopg2.extras.register_hstore(cur)
96 cur.execute("""SELECT country_code, name FROM country_name
97 WHERE country_code is not null""")
99 with tokenizer.name_analyzer() as analyzer:
100 for code, name in cur:
101 names = {'countrycode': code}
103 names['short_name'] = 'UK'
105 names['short_name'] = 'United States'
107 # country names (only in languages as provided)
109 names.update(((k, v) for k, v in name.items() if _include_key(k)))
111 analyzer.add_country_names(code, names)