2 Functions for bringing auxiliary data in the database up-to-date.
7 from textwrap import dedent
9 from psycopg2.extras import execute_values
11 from ..db.utils import execute_file
12 from ..version import NOMINATIM_VERSION
14 LOG = logging.getLogger()
16 def update_postcodes(dsn, sql_dir):
17 """ Recalculate postcode centroids and add, remove and update entries in the
18 location_postcode table. `conn` is an opne connection to the database.
20 execute_file(dsn, sql_dir / 'update-postcodes.sql')
23 def recompute_word_counts(dsn, sql_dir):
24 """ Compute the frequency of full-word search terms.
26 execute_file(dsn, sql_dir / 'words_from_search_name.sql')
29 def _add_address_level_rows_from_entry(rows, entry):
30 """ Converts a single entry from the JSON format for address rank
31 descriptions into a flat format suitable for inserting into a
32 PostgreSQL table and adds these lines to `rows`.
34 countries = entry.get('countries') or (None, )
35 for key, values in entry['tags'].items():
36 for value, ranks in values.items():
37 if isinstance(ranks, list):
38 rank_search, rank_address = ranks
40 rank_search = rank_address = ranks
43 for country in countries:
44 rows.append((country, key, value, rank_search, rank_address))
46 def load_address_levels(conn, table, levels):
47 """ Replace the `address_levels` table with the contents of `levels'.
49 A new table is created any previously existing table is dropped.
50 The table has the following columns:
51 country, class, type, rank_search, rank_address
55 _add_address_level_rows_from_entry(rows, entry)
57 with conn.cursor() as cur:
58 cur.execute('DROP TABLE IF EXISTS {}'.format(table))
60 cur.execute("""CREATE TABLE {} (country_code varchar(2),
64 rank_address SMALLINT)""".format(table))
66 execute_values(cur, "INSERT INTO {} VALUES %s".format(table), rows)
68 cur.execute('CREATE UNIQUE INDEX ON {} (country_code, class, type)'.format(table))
72 def load_address_levels_from_file(conn, config_file):
73 """ Replace the `address_levels` table with the contents of the config
76 with config_file.open('r') as fdesc:
77 load_address_levels(conn, 'address_levels', json.load(fdesc))
79 PLPGSQL_BASE_MODULES = (
88 PLPGSQL_TABLE_MODULES = (
89 ('place', 'place_triggers.sql'),
90 ('placex', 'placex_triggers.sql'),
91 ('location_postcode', 'postcode_triggers.sql')
94 def _get_standard_function_sql(conn, config, sql_dir, enable_diff_updates, enable_debug):
95 """ Read all applicable SQLs containing PL/pgSQL functions, replace
96 placefolders and execute them.
98 sql_func_dir = sql_dir / 'functions'
101 # Get the basic set of functions that is always imported.
102 for sql_file in PLPGSQL_BASE_MODULES:
103 with (sql_func_dir / sql_file).open('r') as fdesc:
106 # Some files require the presence of a certain table
107 for table, fname in PLPGSQL_TABLE_MODULES:
108 if conn.table_exists(table):
109 with (sql_func_dir / fname).open('r') as fdesc:
112 # Replace placeholders.
113 sql = sql.replace('{modulepath}',
114 config.DATABASE_MODULE_PATH or str((config.project_dir / 'module').resolve()))
116 if enable_diff_updates:
117 sql = sql.replace('RETURN NEW; -- %DIFFUPDATES%', '--')
120 sql = sql.replace('--DEBUG:', '')
122 if config.get_bool('LIMIT_REINDEXING'):
123 sql = sql.replace('--LIMIT INDEXING:', '')
125 if not config.get_bool('USE_US_TIGER_DATA'):
126 sql = sql.replace('-- %NOTIGERDATA% ', '')
128 if not config.get_bool('USE_AUX_LOCATION_DATA'):
129 sql = sql.replace('-- %NOAUXDATA% ', '')
131 reverse_only = 'false' if conn.table_exists('search_name') else 'true'
133 return sql.replace('%REVERSE-ONLY%', reverse_only)
136 def replace_partition_string(sql, partitions):
137 """ Replace a partition template with the actual partition code.
139 for match in re.findall('^-- start(.*?)^-- end', sql, re.M | re.S):
141 for part in partitions:
142 repl += match.replace('-partition-', str(part))
143 sql = sql.replace(match, repl)
147 def _get_partition_function_sql(conn, sql_dir):
148 """ Create functions that work on partition tables.
150 with conn.cursor() as cur:
151 cur.execute('SELECT distinct partition FROM country_name')
152 partitions = set([0])
154 partitions.add(row[0])
156 with (sql_dir / 'partition-functions.src.sql').open('r') as fdesc:
159 return replace_partition_string(sql, sorted(partitions))
161 def create_functions(conn, config, sql_dir,
162 enable_diff_updates=True, enable_debug=False):
163 """ (Re)create the PL/pgSQL functions.
165 sql = _get_standard_function_sql(conn, config, sql_dir,
166 enable_diff_updates, enable_debug)
167 sql += _get_partition_function_sql(conn, sql_dir)
169 with conn.cursor() as cur:
185 # constants needed by PHP scripts: PHP name, config name, type
187 ('Database_DSN', 'DATABASE_DSN', str),
188 ('Default_Language', 'DEFAULT_LANGUAGE', str),
189 ('Log_DB', 'LOG_DB', bool),
190 ('Log_File', 'LOG_FILE', str),
191 ('Max_Word_Frequency', 'MAX_WORD_FREQUENCY', int),
192 ('NoAccessControl', 'CORS_NOACCESSCONTROL', bool),
193 ('Places_Max_ID_count', 'LOOKUP_MAX_COUNT', int),
194 ('PolygonOutput_MaximumTypes', 'POLYGON_OUTPUT_MAX_TYPES', int),
195 ('Search_BatchMode', 'SEARCH_BATCH_MODE', bool),
196 ('Search_NameOnlySearchFrequencyThreshold', 'SEARCH_NAME_ONLY_THRESHOLD', str),
197 ('Term_Normalization_Rules', 'TERM_NORMALIZATION', str),
198 ('Use_Aux_Location_data', 'USE_AUX_LOCATION_DATA', bool),
199 ('Use_US_Tiger_Data', 'USE_US_TIGER_DATA', bool),
200 ('MapIcon_URL', 'MAPICON_URL', str),
204 def import_wikipedia_articles(dsn, data_path, ignore_errors=False):
205 """ Replaces the wikipedia importance tables with new data.
206 The import is run in a single transaction so that the new data
207 is replace seemlessly.
209 Returns 0 if all was well and 1 if the importance file could not
210 be found. Throws an exception if there was an error reading the file.
212 datafile = data_path / 'wikimedia-importance.sql.gz'
214 if not datafile.exists():
218 DROP TABLE IF EXISTS "wikipedia_article";
219 DROP TABLE IF EXISTS "wikipedia_redirect"
222 execute_file(dsn, datafile, ignore_errors=ignore_errors,
223 pre_code=pre_code, post_code=post_code)
228 def recompute_importance(conn):
229 """ Recompute wikipedia links and importance for all entries in placex.
230 This is a long-running operations that must not be executed in
231 parallel with updates.
233 with conn.cursor() as cur:
234 cur.execute('ALTER TABLE placex DISABLE TRIGGER ALL')
236 UPDATE placex SET (wikipedia, importance) =
237 (SELECT wikipedia, importance
238 FROM compute_importance(extratags, country_code, osm_type, osm_id))
241 UPDATE placex s SET wikipedia = d.wikipedia, importance = d.importance
243 WHERE s.place_id = d.linked_place_id and d.wikipedia is not null
244 and (s.wikipedia is null or s.importance < d.importance);
247 cur.execute('ALTER TABLE placex ENABLE TRIGGER ALL')
251 def setup_website(basedir, phplib_dir, config):
252 """ Create the website script stubs.
254 if not basedir.exists():
255 LOG.info('Creating website directory.')
258 template = dedent("""\
261 @define('CONST_Debug', $_GET['debug'] ?? false);
262 @define('CONST_LibDir', '{0}');
263 @define('CONST_NominatimVersion', '{1[0]}.{1[1]}.{1[2]}-{1[3]}');
265 """.format(phplib_dir, NOMINATIM_VERSION))
267 for php_name, conf_name, var_type in PHP_CONST_DEFS:
269 varout = 'true' if config.get_bool(conf_name) else 'false'
270 elif var_type == int:
271 varout = getattr(config, conf_name)
272 elif not getattr(config, conf_name):
275 varout = "'{}'".format(getattr(config, conf_name).replace("'", "\\'"))
277 template += "@define('CONST_{}', {});\n".format(php_name, varout)
279 template += "\nrequire_once('{}/website/{{}}');\n".format(phplib_dir)
281 for script in WEBSITE_SCRIPTS:
282 (basedir / script).write_text(template.format(script), 'utf-8')