"""
Functions for importing and managing static country information.
"""
-import json
-from io import StringIO
import psycopg2.extras
from nominatim.db import utils as db_utils
from nominatim.db.connection import connect
+
class _CountryInfo:
""" Caches country-specific properties from the configuration file.
"""
def __init__(self):
self._info = {}
-
+ self._key_prefix = 'name'
def load(self, config):
""" Load the country properties from the configuration files,
elif not isinstance(prop['languages'], list):
prop['languages'] = [x.strip()
for x in prop['languages'].split(',')]
- if 'names' not in prop:
- prop['names']['name'] = {}
+ if 'names' not in prop or prop['names'] is None:
+ prop['names'] = {self._key_prefix: {}}
def items(self):
""" Return tuples of (country_code, property dict) as iterable.
"""
return self._info.items()
+ def key_prefix(self):
+ """ Return the prefix that will be attached to the keys of the country
+ names values when storing them in the database
+ """
+ return self._key_prefix
+
_COUNTRY_INFO = _CountryInfo()
+
def setup_country_config(config):
""" Load country properties from the configuration file.
Needs to be called before using any other functions in this
"""
db_utils.execute_file(dsn, sql_dir / 'country_osm_grid.sql.gz')
- def add_prefix_to_keys(name, prefix):
- return {prefix+k: v for k, v in name.items()}
+ def add_prefix_to_keys(names, prefix):
+ return {prefix+':'+k: v for k, v in names.items()}
- params, country_names_data = [], ''
+ params = []
for ccode, props in _COUNTRY_INFO.items():
if ccode is not None and props is not None:
if ignore_partitions:
partition = 0
else:
partition = props.get('partition')
- lang = props['languages'][0] if len(props['languages']) == 1 else None
- params.append((ccode, partition, lang))
-
- name = add_prefix_to_keys(props.get('names').get('name'), 'name:')
- name = json.dumps(name , ensure_ascii=False, separators=(', ', '=>'))
- country_names_data += ccode + '\t' + name[1:-1] + '\n'
+ lang = props['languages'][0] if len(
+ props['languages']) == 1 else None
+ name = add_prefix_to_keys(props.get('names').get(
+ _COUNTRY_INFO.key_prefix()), _COUNTRY_INFO.key_prefix())
+ params.append((ccode, name, lang, partition))
with connect(dsn) as conn:
with conn.cursor() as cur:
+ psycopg2.extras.register_hstore(cur)
cur.execute(
""" CREATE TABLE public.country_name (
country_code character varying(2),
country_default_language_code text,
partition integer
); """)
- data = StringIO(country_names_data)
- cur.copy_from(data, 'country_name', columns=('country_code', 'name'))
cur.execute_values(
- """ UPDATE country_name
- SET partition = part, country_default_language_code = lang
- FROM (VALUES %s) AS v (cc, part, lang)
- WHERE country_code = v.cc""", params)
+ """ INSERT INTO public.country_name
+ (country_code, name, country_default_language_code, partition) VALUES %s
+ """, params)
conn.commit()
if languages:
languages = languages.split(',')
- # def _include_key(key):
- # return key.startswith('name:') and \
- # key[5:] in languages or key[5:] == 'default'
def _include_key(key):
- return key == 'name' or \
- (key.startswith('name:') and (not languages or key[5:] in languages))
+ return key == _COUNTRY_INFO.key_prefix() or \
+ (key.startswith(_COUNTRY_INFO.key_prefix()+':') and
+ (not languages or key[len(_COUNTRY_INFO.key_prefix())+1:] in languages))
with conn.cursor() as cur:
psycopg2.extras.register_hstore(cur)
# country names (only in languages as provided)
if name:
- names.update(((k, v) for k, v in name.items() if _include_key(k)))
+ names.update(((k, v)
+ for k, v in name.items() if _include_key(k)))
analyzer.add_country_names(code, names)