Merge pull request #2629 from tareqpi/country-names-yaml-configuration

Move default country names into yaml configuration

CMakeLists.txt

@@ -226,8 +226,7 @@ if (BUILD_IMPORTER)
             PATTERN __pycache__ EXCLUDE)
     install(DIRECTORY lib-sql DESTINATION ${NOMINATIM_LIBDIR})
 
-    install(FILES data/country_name.sql
+    install(FILES ${COUNTRY_GRID_FILE}
-                  ${COUNTRY_GRID_FILE}
                   data/words.sql
             DESTINATION ${NOMINATIM_DATADIR})
 endif()

lib-sql/functions/address_lookup.sql

@@ -43,8 +43,8 @@ BEGIN
     END IF;
   END LOOP;
 
-  -- anything will do as a fallback - just take the first name type thing there is
+  -- as a fallback - take the last element since it is the default name
-  RETURN trim((avals(name))[1]);
+  RETURN trim((avals(name))[array_length(avals(name), 1)]);
 END;
 $$
 LANGUAGE plpgsql IMMUTABLE;

nominatim/tools/country_info.py

@@ -12,13 +12,14 @@ 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,
@@ -33,16 +34,24 @@ class _CountryInfo:
                 elif not isinstance(prop['languages'], list):
                     prop['languages'] = [x.strip()
                                          for x in prop['languages'].split(',')]
-
+                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
@@ -61,9 +70,11 @@ 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')
 
+    def add_prefix_to_keys(names, prefix):
+        return {prefix+':'+k: v for k, v in names.items()}
+
     params = []
     for ccode, props in _COUNTRY_INFO.items():
         if ccode is not None and props is not None:
@@ -71,16 +82,26 @@ def setup_country_tables(dsn, sql_dir, ignore_partitions=False):
                 partition = 0
             else:
                 partition = props.get('partition')
-            lang = props['languages'][0] if len(props['languages']) == 1 else None
+            lang = props['languages'][0] if len(
-            params.append((ccode, partition, lang))
+                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),
+                        name public.hstore,
+                        derived_name public.hstore,
+                        country_default_language_code text,
+                        partition integer
+                    ); """)
             cur.execute_values(
-                """ UPDATE country_name
+                """ INSERT INTO public.country_name
-                    SET partition = part, country_default_language_code = lang
+                    (country_code, name, country_default_language_code, partition) VALUES %s
-                    FROM (VALUES %s) AS v (cc, part, lang)
+                """, params)
-                    WHERE country_code = v.cc""", params)
         conn.commit()
 
 
@@ -94,8 +115,9 @@ def create_country_names(conn, tokenizer, languages=None):
         languages = languages.split(',')
 
     def _include_key(key):
-        return key == 'name' or \
+        return key == _COUNTRY_INFO.key_prefix() or \
-               (key.startswith('name:') and (not languages or key[5:] in languages))
+            (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)
@@ -112,7 +134,8 @@ def create_country_names(conn, tokenizer, languages=None):
 
                 # 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)
 

test/python/tools/test_country_info.py

@@ -12,20 +12,24 @@ import pytest
 
 from nominatim.tools import country_info
 
-@pytest.fixture(autouse=True)
+
 def read_config(def_config):
     country_info.setup_country_config(def_config)
 
+
 @pytest.mark.parametrize("no_partitions", (True, False))
 def test_setup_country_tables(src_dir, temp_db_with_extensions, dsn, temp_db_cursor,
                               def_config, no_partitions):
+    read_config(def_config)
     country_info.setup_country_tables(dsn, src_dir / 'data', no_partitions)
 
     assert temp_db_cursor.table_exists('country_name')
     assert temp_db_cursor.table_rows('country_name') == \
-             temp_db_cursor.scalar('SELECT count(DISTINCT country_code) FROM country_name')
+        temp_db_cursor.scalar(
+            'SELECT count(DISTINCT country_code) FROM country_name')
 
-    partitions = temp_db_cursor.row_set("SELECT DISTINCT partition FROM country_name")
+    partitions = temp_db_cursor.row_set(
+        "SELECT DISTINCT partition FROM country_name")
     if no_partitions:
         assert partitions == {(0, )}
     else:
@@ -37,7 +41,8 @@ def test_setup_country_tables(src_dir, temp_db_with_extensions, dsn, temp_db_cur
 
 @pytest.mark.parametrize("languages", (None, ' fr,en'))
 def test_create_country_names(temp_db_with_extensions, temp_db_conn, temp_db_cursor,
-                              table_factory, tokenizer_mock, languages):
+                              table_factory, tokenizer_mock, languages, def_config):
+    read_config(def_config)
 
     table_factory('country_name', 'country_code varchar(2), name hstore',
                   content=(('us', '"name"=>"us1","name:af"=>"us2"'),
@@ -51,11 +56,66 @@ def test_create_country_names(temp_db_with_extensions, temp_db_conn, temp_db_cur
 
     assert len(tokenizer.analyser_cache['countries']) == 2
 
-    result_set = {k: set(v.values()) for k, v in tokenizer.analyser_cache['countries']}
+    result_set = {k: set(v.values())
+                  for k, v in tokenizer.analyser_cache['countries']}
 
     if languages:
-        assert result_set == {'us' : set(('us', 'us1', 'United States')),
+        assert result_set == {'us': set(('us', 'us1', 'United States')),
-                              'fr' : set(('fr', 'Fra', 'Fren'))}
+                              'fr': set(('fr', 'Fra', 'Fren'))}
     else:
-        assert result_set == {'us' : set(('us', 'us1', 'us2', 'United States')),
+        assert result_set == {'us': set(('us', 'us1', 'us2', 'United States')),
-                              'fr' : set(('fr', 'Fra', 'Fren'))}
+                              'fr': set(('fr', 'Fra', 'Fren'))}
+
+
+def test_setup_country_config_languages_not_loaded(project_env):
+    (project_env.project_dir / 'country_settings.yaml').write_text("""
+de:
+    partition: 3
+    names:
+        name:
+            default: Deutschland
+""")
+    country_info._COUNTRY_INFO._info = None
+    country_info.setup_country_config(project_env)
+    assert country_info._COUNTRY_INFO._info == {'de': {'partition': 3,
+                                                       'languages': [], 'names': {'name': {'default': 'Deutschland'}}}}
+
+
+def test_setup_country_config_name_not_loaded(project_env):
+    (project_env.project_dir / 'country_settings.yaml').write_text("""
+de:
+    partition: 3
+    languages: de
+    names:
+""")
+    country_info._COUNTRY_INFO._info = None
+    country_info.setup_country_config(project_env)
+    assert country_info._COUNTRY_INFO._info == {'de': {'partition': 3,
+                                                       'languages': ['de'], 'names': {'name': {}}}}
+
+
+def test_setup_country_config_names_not_loaded(project_env):
+    (project_env.project_dir / 'country_settings.yaml').write_text("""
+de:
+    partition: 3
+    languages: de
+""")
+    country_info._COUNTRY_INFO._info = None
+    country_info.setup_country_config(project_env)
+    assert country_info._COUNTRY_INFO._info == {'de': {'partition': 3,
+                                                       'languages': ['de'], 'names': {'name': {}}}}
+
+
+def test_setup_country_config_special_character(project_env):
+    (project_env.project_dir / 'country_settings.yaml').write_text("""
+bq:
+    partition: 250
+    languages: nl
+    names: 
+        name: 
+            default: "\\N"
+""")
+    country_info._COUNTRY_INFO._info = None
+    country_info.setup_country_config(project_env)
+    assert country_info._COUNTRY_INFO._info == {'bq': {'partition': 250,
+                                                       'languages': ['nl'], 'names': {'name': {'default': '\x85'}}}}