adding prefix to keys is now more configurable

[nominatim.git] / nominatim / tools / country_info.py

diff --git a/nominatim/tools/country_info.py b/nominatim/tools/country_info.py
index 897ac22031c32267a1321da3b54efb23348d503e..2457e01b6b05178c7b7c41e55574953e8a4d9351 100644 (file)
--- a/nominatim/tools/country_info.py
+++ b/nominatim/tools/country_info.py
@@ -1,8 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# This file is part of Nominatim. (https://nominatim.org)
+#
+# Copyright (C) 2022 by the Nominatim developer community.
+# For a full list of authors see the git log.
 """
 Functions for importing and managing static country information.
 """
+import json
+from io import StringIO
 import psycopg2.extras
-import yaml
 
 from nominatim.db import utils as db_utils
 from nominatim.db.connection import connect
@@ -14,12 +21,22 @@ class _CountryInfo:
     def __init__(self):
         self._info = {}
 
-    def load(self, configfile):
+
+    def load(self, config):
         """ Load the country properties from the configuration files,
             if they are not loaded yet.
         """
         if not self._info:
-            self._info = yaml.safe_load(configfile.read_text(encoding='utf-8'))
+            self._info = config.load_sub_configuration('country_settings.yaml')
+            # Convert languages into a list for simpler handling.
+            for prop in self._info.values():
+                if 'languages' not in prop:
+                    prop['languages'] = []
+                elif not isinstance(prop['languages'], list):
+                    prop['languages'] = [x.strip()
+                                         for x in prop['languages'].split(',')]
+                if 'names' not in prop:
+                    prop['names']['name'] = {}
 
     def items(self):
         """ Return tuples of (country_code, property dict) as iterable.
@@ -29,36 +46,54 @@ class _CountryInfo:
 
 _COUNTRY_INFO = _CountryInfo()
 
-def setup_country_config(configfile):
+def setup_country_config(config):
     """ Load country properties from the configuration file.
         Needs to be called before using any other functions in this
         file.
     """
-    _COUNTRY_INFO.load(configfile)
+    _COUNTRY_INFO.load(config)
+
+
+def iterate():
+    """ Iterate over country code and properties.
+    """
+    return _COUNTRY_INFO.items()
 
 
 def setup_country_tables(dsn, sql_dir, ignore_partitions=False):
     """ Create and populate the tables with basic static data that provides
         the background for geocoding. Data is assumed to not yet exist.
     """
-    db_utils.execute_file(dsn, sql_dir / 'country_name.sql')
     db_utils.execute_file(dsn, sql_dir / 'country_osm_grid.sql.gz')
 
-    params = []
+    def add_prefix_to_keys(name, prefix):
+        return {prefix+k: v for k, v in name.items()}
+
+    params, country_names_data = [], ''
     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')
-            if ',' in (props.get('languages', ',') or ','):
-                lang = None
-            else:
-                lang = props['languages']
+            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'
     with connect(dsn) as conn:
         with conn.cursor() as cur:
+            cur.execute(
+                """ CREATE TABLE public.country_name (
+                        country_code character varying(2),
+                        name public.hstore,
+                        derived_name public.hstore,
+                        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
@@ -77,8 +112,8 @@ def create_country_names(conn, tokenizer, languages=None):
         languages = languages.split(',')
 
     def _include_key(key):
-        return key == 'name' or \
-               (key.startswith('name:') and (not languages or key[5:] in languages))
+        return key.startswith('name:') and \
+            key[5:] in languages or key[5:] == 'default'
 
     with conn.cursor() as cur:
         psycopg2.extras.register_hstore(cur)