def create_admin_bdys_for_analysis(settings):
# Step 3 of 3 : create admin bdy tables optimised for spatial analysis
start_time = datetime.now()
if settings['st_subdivide_supported']:
template_sql = psma.open_sql_file(
"02-03-create-admin-bdy-analysis-tables_template.sql", settings)
sql_list = list()
for table in settings['admin_bdy_list']:
sql = template_sql.format(table[0], table[1])
if table[
0] == 'locality_bdys': # special case, need to change schema name
# sql = sql.replace(settings['raw_admin_bdys_schema'], settings['admin_bdys_schema'])
sql = sql.replace("name", "locality_name")
# add postcodes
sql = sql.replace(
"locality_name text NOT NULL,",
"locality_name text NOT NULL, postcode text NULL,")
sql = sql.replace("locality_name,", "locality_name, postcode,")
sql_list.append(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 3 of 3 : admin boundaries for analysis created : {0}".
format(datetime.now() - start_time))
else:
logger.warning(
"\t- Step 3 of 3 : admin boundaries for analysis NOT created - "
"requires PostGIS 2.2+ with GEOS 3.5.0+")
def get_split_localities(pg_cur, settings):
start_time = datetime.now()
sql = psma.open_sql_file("02-split-localities-by-state-borders.sql", settings)
sql_list = psma.split_sql_into_list(pg_cur, sql, settings['admin_bdys_schema'], "temp_localities", "loc", "gid",
settings, logger)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 2 of 7 : localities split by state : {0}".format(datetime.now() - start_time))
def get_locality_state_border_gaps(pg_cur, settings):
start_time = datetime.now()
sql = psma.open_sql_file("04-create-holes-along-borders.sql", settings)
sql_list = psma.split_sql_into_list(pg_cur, sql, settings['admin_bdys_schema'],
"temp_state_border_buffers_subdivided", "ste", "new_gid", settings, logger)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 4 of 7 : locality holes created : {0}".format(datetime.now() - start_time))
def create_primary_foreign_keys(settings):
start_time = datetime.now()
key_sql = open(
os.path.join(settings['sql_dir'],
"01-06-raw-gnaf-create-primary-foreign-keys.sql"),
"r").read()
key_sql_list = key_sql.split("--")
sql_list = []
for sql in key_sql_list:
sql = sql.strip()
if sql[0:6] == "ALTER ":
# add schema to tables names, in case raw gnaf schema not the default
sql = sql.replace(
"ALTER TABLE ONLY ",
"ALTER TABLE ONLY " + settings['raw_gnaf_schema'] + ".")
sql_list.append(sql)
sql_list = []
# run queries in separate processes
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 6 of 7 : primary & foreign keys created : {0}".format(
datetime.now() - start_time))
def get_locality_state_border_gaps(pg_cur, settings):
start_time = datetime.now()
sql = psma.open_sql_file("04-create-holes-along-borders.sql", settings)
sql_list = psma.split_sql_into_list(
pg_cur, sql, settings['admin_bdys_schema'],
"temp_state_border_buffers_subdivided", "ste", "new_gid", settings,
logger)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 4 of 7 : locality holes created : {0}".format(
datetime.now() - start_time))
def create_states_and_prep_localities(settings):
start_time = datetime.now()
sql_list = [
psma.open_sql_file("01a-create-states-from-sa4s.sql", settings),
psma.open_sql_file("01b-prep-locality-boundaries.sql", settings)
]
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 1 of 7 : state table created & localities prepped : {0}".
format(datetime.now() - start_time))
def get_split_localities(pg_cur, settings):
start_time = datetime.now()
sql = psma.open_sql_file("02-split-localities-by-state-borders.sql",
settings)
sql_list = psma.split_sql_into_list(pg_cur, sql,
settings['admin_bdys_schema'],
"temp_localities", "loc", "gid",
settings, logger)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 2 of 7 : localities split by state : {0}".format(
datetime.now() - start_time))
def index_raw_gnaf(settings):
# Step 5 of 7 : create indexes
start_time = datetime.now()
raw_sql_list = psma.open_sql_file("01-05-raw-gnaf-create-indexes.sql", settings).split("\n")
sql_list = []
for sql in raw_sql_list:
if sql[0:2] != "--" and sql[0:2] != "":
sql_list.append(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 5 of 7 : indexes created: {0}".format(datetime.now() - start_time))
def prep_admin_bdys(pg_cur, settings):
# Step 2 of 3 : create admin bdy tables read to be used
start_time = datetime.now()
if settings['admin_bdys_schema'] != "public":
pg_cur.execute(
"CREATE SCHEMA IF NOT EXISTS {0} AUTHORIZATION {1}".format(
settings['admin_bdys_schema'], settings['pg_user']))
# create tables using multiprocessing - using flag in file to split file up into sets of statements
sql_list = psma.open_sql_file("02-02a-prep-admin-bdys-tables.sql",
settings).split("-- # --")
sql_list = sql_list + psma.open_sql_file(
"02-02b-prep-census-2011-bdys-tables.sql", settings).split("-- # --")
sql_list = sql_list + psma.open_sql_file(
"02-02c-prep-census-2016-bdys-tables.sql", settings).split("-- # --")
# # Account for bdys that are not in states to load - not yet working
# for sql in sql_list:
# if settings['states_to_load'] == ['OT'] and '.commonwealth_electorates ' in sql:
# sql_list.remove(sql)
#
# if settings['states_to_load'] == ['ACT'] and '.local_government_areas ' in sql:
# sql_list.remove(sql)
#
# logger.info(settings['states_to_load']
#
# if not ('NT' in settings['states_to_load'] or 'SA' in settings['states_to_load']
# or 'VIC' in settings['states_to_load'] or 'WA' in settings['states_to_load']) \
# and '.local_government_wards ' in sql:
# sql_list.remove(sql)
#
# if settings['states_to_load'] == ['OT'] and '.state_lower_house_electorates ' in sql:
# sql_list.remove(sql)
#
# if not ('TAS' in settings['states_to_load'] or 'VIC' in settings['states_to_load']
# or 'WA' in settings['states_to_load']) and '.state_upper_house_electorates ' in sql:
# sql_list.remove(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
# Special case - remove custom outback bdy if South Australia not requested
if 'SA' not in settings['states_to_load']:
pg_cur.execute(
psma.prep_sql(
"DELETE FROM admin_bdys.locality_bdys WHERE locality_pid = 'SA999999'",
settings))
pg_cur.execute(
psma.prep_sql("VACUUM ANALYZE admin_bdys.locality_bdys", settings))
logger.info("\t- Step 2 of 3 : admin boundaries prepped : {0}".format(
datetime.now() - start_time))
def analyse_raw_gnaf_tables(pg_cur, settings):
start_time = datetime.now()
# get list of tables that haven't been analysed (i.e. that have no real row count)
sql = "SELECT nspname|| '.' || relname AS table_name " \
"FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)" \
"WHERE nspname = '{0}' AND relkind='r' AND reltuples = 0".format(settings['raw_gnaf_schema'])
pg_cur.execute(sql)
sql_list = []
for pg_row in pg_cur:
sql_list.append("ANALYZE {0}".format(pg_row[0]))
# run queries in separate processes
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 7 of 7 : tables analysed : {0}".format(datetime.now() - start_time))
def populate_raw_gnaf(settings):
# Step 4 of 7 : load raw gnaf authority & state tables
start_time = datetime.now()
# authority code file list
sql_list = get_raw_gnaf_files("authority_code", settings)
# add state file lists
for state in settings['states_to_load']:
logger.info("\t\t- Loading state {}".format(state))
sql_list.extend(get_raw_gnaf_files(state, settings))
# are there any files to load?
if len(sql_list) == 0:
logger.fatal("No raw GNAF PSV files found\nACTION: Check your 'gnaf_network_directory' path")
logger.fatal("\t- Step 4 of 7 : table populate FAILED!")
else:
# load all PSV files using multiprocessing
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 4 of 7 : tables populated : {0}".format(datetime.now() - start_time))
def boundary_tag_gnaf(pg_cur, settings):
# create bdy table list
# remove localities, postcodes and states as these IDs are already assigned to GNAF addresses
table_list = list()
for table in settings['admin_bdy_list']:
if table[0] not in ["locality_bdys", "postcode_bdys", "state_bdys"]:
# if no analysis tables created - use the full tables instead of the subdivided ones
# WARNING: this can add hours to the processing
if settings['st_subdivide_supported']:
table_name = "{}_analysis".format(table[0], )
else:
table_name = table[0]
table_list.append([table_name, table[1]])
# create bdy tagged address tables
for address_table in ["address_principal", "address_alias"]:
pg_cur.execute(
"DROP TABLE IF EXISTS {}.{}_admin_boundaries CASCADE".format(
settings['gnaf_schema'], address_table))
create_table_list = list()
create_table_list.append(
"CREATE TABLE {}.{}_admin_boundaries (gid serial NOT NULL,"
"gnaf_pid text NOT NULL,"
# "alias_principal character(1) NOT NULL,"
"locality_pid text NOT NULL,"
"locality_name text NOT NULL,"
"postcode text,"
"state text NOT NULL".format(settings['gnaf_schema'],
address_table))
for table in table_list:
pid_field = table[1]
name_field = pid_field.replace("_pid", "_name")
create_table_list.append(", {} text, {} text".format(
pid_field, name_field))
create_table_list.append(
") WITH (OIDS=FALSE);ALTER TABLE {}.{}_admin_boundaries OWNER TO {}"
.format(settings['gnaf_schema'], address_table,
settings['pg_user']))
pg_cur.execute("".join(create_table_list))
# Step 1 of 6 : tag gnaf addresses with admin boundary IDs, using multiprocessing
start_time = datetime.now()
# create temp tables
template_sql = psma.open_sql_file(
"04-01a-bdy-tag-create-table-template.sql", settings)
for table in table_list:
pg_cur.execute(template_sql.format(table[0], ))
# create temp tables of bdy tagged gnaf_pids
template_sql = psma.open_sql_file("04-01b-bdy-tag-template.sql", settings)
sql_list = list()
for table in table_list:
sql = template_sql.format(table[0], table[1])
short_sql_list = psma.split_sql_into_list(
pg_cur, sql, settings['admin_bdys_schema'], table[0], "bdys",
"gid", settings, logger)
if short_sql_list is not None:
sql_list.extend(short_sql_list)
# logger.info('\n'.join(sql_list))
if sql_list is not None:
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 1 of 6 : principal addresses tagged with admin boundary IDs: {}"
.format(datetime.now() - start_time, ))
start_time = datetime.now()
# Step 2 of 6 : delete invalid matches, create indexes and analyse tables
sql_list = list()
for table in table_list:
sql = "DELETE FROM {0}.temp_{1}_tags WHERE gnaf_state <> bdy_state AND gnaf_state <> 'OT';" \
"CREATE INDEX temp_{1}_tags_gnaf_pid_idx ON {0}.temp_{1}_tags USING btree(gnaf_pid);" \
"ANALYZE {0}.temp_{1}_tags".format(settings['gnaf_schema'], table[0])
sql_list.append(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 2 of 6 : principal addresses - invalid matches deleted & bdy tag indexes created : {}"
.format(datetime.now() - start_time, ))
start_time = datetime.now()
# Step 3 of 6 : insert boundary tagged addresses
# create insert statement for multiprocessing
insert_field_list = list()
insert_field_list.append(
"(gnaf_pid, locality_pid, locality_name, postcode, state")
insert_join_list = list()
insert_join_list.append("FROM {}.address_principals AS pnts ".format(
settings['gnaf_schema'], ))
select_field_list = list()
select_field_list.append("SELECT pnts.gnaf_pid, pnts.locality_pid, "
"pnts.locality_name, pnts.postcode, pnts.state")
drop_table_list = list()
for table in table_list:
pid_field = table[1]
name_field = pid_field.replace("_pid", "_name")
insert_field_list.append(", {0}, {1}".format(pid_field, name_field))
select_field_list.append(
", temp_{0}_tags.bdy_pid, temp_{0}_tags.bdy_name ".format(
table[0]))
insert_join_list.append(
"LEFT OUTER JOIN {0}.temp_{1}_tags ON pnts.gnaf_pid = temp_{1}_tags.gnaf_pid "
.format(settings['gnaf_schema'], table[0]))
drop_table_list.append(
"DROP TABLE IF EXISTS {0}.temp_{1}_tags;".format(
settings['gnaf_schema'], table[0]))
insert_field_list.append(") ")
insert_statement_list = list()
insert_statement_list.append(
"INSERT INTO {0}.address_principal_admin_boundaries ".format(
settings['gnaf_schema'], ))
insert_statement_list.append("".join(insert_field_list))
insert_statement_list.append("".join(select_field_list))
insert_statement_list.append("".join(insert_join_list))
sql = "".join(insert_statement_list) + ";"
sql_list = psma.split_sql_into_list(pg_cur, sql, settings['gnaf_schema'],
"address_principals", "pnts", "gid",
settings, logger)
# logger.info("\n".join(sql_list)
if sql_list is not None:
psma.multiprocess_list("sql", sql_list, settings, logger)
# drop temp tables
pg_cur.execute("".join(drop_table_list))
# get stats
pg_cur.execute("ANALYZE {0}.address_principal_admin_boundaries ".format(
settings['gnaf_schema']))
logger.info(
"\t- Step 3 of 6 : principal addresses - bdy tags added to output table : {}"
.format(datetime.now() - start_time, ))
start_time = datetime.now()
# Step 4 of 6 : add index to output table
sql = "CREATE INDEX address_principal_admin_boundaries_gnaf_pid_idx " \
"ON {0}.address_principal_admin_boundaries USING btree (gnaf_pid)"\
.format(settings['gnaf_schema'])
pg_cur.execute(sql)
logger.info(
"\t- Step 4 of 6 : created index on bdy tagged address table : {}".
format(datetime.now() - start_time, ))
start_time = datetime.now()
# Step 5 of 6 : log duplicates - happens when 2 boundaries overlap by a very small amount
# (can be ignored if there's a small number of records affected)
sql = "SELECT gnaf_pid FROM (SELECT Count(*) AS cnt, gnaf_pid FROM {0}.address_principal_admin_boundaries " \
"GROUP BY gnaf_pid) AS sqt WHERE cnt > 1".format(settings['gnaf_schema'])
pg_cur.execute(sql)
# get cursor description to test if any rows returned safely
columns = pg_cur.description
# log gnaf_pids that got duplicate results
if columns is not None:
duplicates = pg_cur.fetchall()
gnaf_pids = list()
for duplicate in duplicates:
gnaf_pids.append("\t\t" + duplicate[0])
if len(gnaf_pids) > 0:
logger.warning(
"\t- Step 5 of 6 : found boundary tag duplicates : {}".format(
datetime.now() - start_time, ))
logger.warning("\n".join(gnaf_pids))
else:
logger.info(
"\t- Step 5 of 6 : no boundary tag duplicates : {}".format(
datetime.now() - start_time, ))
else:
logger.info("\t- Step 5 of 6 : no boundary tag duplicates : {}".format(
datetime.now() - start_time, ))
# Step 6 of 6 : Copy principal boundary tags to alias addresses
pg_cur.execute(
psma.open_sql_file("04-06-bdy-tags-for-alias-addresses.sql", settings))
logger.info(
"\t- Step 6 of 6 : alias addresses boundary tagged : {}".format(
datetime.now() - start_time, ))
# Step 7 of 7 : Create view of all bdy tags
pg_cur.execute(
psma.open_sql_file("04-07-create-bdy-tag-view.sql", settings))
logger.info(
"\t- Step 6 of 6 : boundary tagged address view created : {}".format(
datetime.now() - start_time, ))
def create_reference_tables(pg_cur, settings):
# set postgres search path back to the default
pg_cur.execute("SET search_path = public, pg_catalog")
# Step 1 of 14 : create reference tables
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-01-reference-create-tables.sql", settings))
logger.info("\t- Step 1 of 14 : create reference tables : {0}".format(
datetime.now() - start_time))
# Step 2 of 14 : populate localities
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-02-reference-populate-localities.sql",
settings))
logger.info("\t- Step 2 of 14 : localities populated : {0}".format(
datetime.now() - start_time))
# Step 3 of 14 : populate locality aliases
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-03-reference-populate-locality-aliases.sql",
settings))
logger.info("\t- Step 3 of 14 : locality aliases populated : {0}".format(
datetime.now() - start_time))
# Step 4 of 14 : populate locality neighbours
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-04-reference-populate-locality-neighbours.sql",
settings))
logger.info(
"\t- Step 4 of 14 : locality neighbours populated : {0}".format(
datetime.now() - start_time))
# Step 5 of 14 : populate streets
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-05-reference-populate-streets.sql", settings))
logger.info(
"\t- Step 5 of 14 : streets populated : {0}".format(datetime.now() -
start_time))
# Step 6 of 14 : populate street aliases
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-06-reference-populate-street-aliases.sql",
settings))
logger.info("\t- Step 6 of 14 : street aliases populated : {0}".format(
datetime.now() - start_time))
# Step 7 of 14 : populate addresses, using multiprocessing
start_time = datetime.now()
sql = psma.open_sql_file("03-07-reference-populate-addresses-1.sql",
settings)
sql_list = psma.split_sql_into_list(pg_cur, sql, settings['gnaf_schema'],
"streets", "str", "gid", settings,
logger)
if sql_list is not None:
psma.multiprocess_list('sql', sql_list, settings, logger)
pg_cur.execute(psma.prep_sql("ANALYZE gnaf.temp_addresses;", settings))
logger.info(
"\t- Step 7 of 14 : addresses populated : {0}".format(datetime.now() -
start_time))
# Step 8 of 14 : populate principal alias lookup
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-08-reference-populate-address-alias-lookup.sql",
settings))
logger.info(
"\t- Step 8 of 14 : principal alias lookup populated : {0}".format(
datetime.now() - start_time))
# Step 9 of 14 : populate primary secondary lookup
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file(
"03-09-reference-populate-address-secondary-lookup.sql", settings))
pg_cur.execute(
psma.prep_sql("VACUUM ANALYSE gnaf.address_secondary_lookup",
settings))
logger.info(
"\t- Step 9 of 14 : primary secondary lookup populated : {0}".format(
datetime.now() - start_time))
# Step 10 of 14 : split the Melbourne locality into its 2 postcodes (3000, 3004)
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-10-reference-split-melbourne.sql", settings))
logger.info(
"\t- Step 10 of 14 : Melbourne split : {0}".format(datetime.now() -
start_time))
# Step 11 of 14 : finalise localities assigned to streets and addresses
start_time = datetime.now()
pg_cur.execute(
psma.open_sql_file("03-11-reference-finalise-localities.sql",
settings))
logger.info("\t- Step 11 of 14 : localities finalised : {0}".format(
datetime.now() - start_time))
# Step 12 of 14 : finalise addresses, using multiprocessing
start_time = datetime.now()
sql = psma.open_sql_file("03-12-reference-populate-addresses-2.sql",
settings)
sql_list = psma.split_sql_into_list(pg_cur, sql, settings['gnaf_schema'],
"localities", "loc", "gid", settings,
logger)
if sql_list is not None:
psma.multiprocess_list('sql', sql_list, settings, logger)
# turf the temp address table
pg_cur.execute(
psma.prep_sql("DROP TABLE IF EXISTS gnaf.temp_addresses", settings))
logger.info(
"\t- Step 12 of 14 : addresses finalised : {0}".format(datetime.now() -
start_time))
# Step 13 of 14 : create almost correct postcode boundaries by aggregating localities, using multiprocessing
start_time = datetime.now()
sql = psma.open_sql_file("03-13-reference-derived-postcode-bdys.sql",
settings)
sql_list = []
for state in settings['states_to_load']:
state_sql = sql.replace("GROUP BY ",
"WHERE state = '{0}' GROUP BY ".format(state))
sql_list.append(state_sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
# create analysis table?
if settings['st_subdivide_supported']:
pg_cur.execute(
psma.open_sql_file("03-13a-create-postcode-analysis-table.sql",
settings))
logger.info("\t- Step 13 of 14 : postcode boundaries created : {0}".format(
datetime.now() - start_time))
# Step 14 of 14 : create indexes, primary and foreign keys, using multiprocessing
start_time = datetime.now()
raw_sql_list = psma.open_sql_file("03-14-reference-create-indexes.sql",
settings).split("\n")
sql_list = []
for sql in raw_sql_list:
if sql[0:2] != "--" and sql[0:2] != "":
sql_list.append(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info(
"\t- Step 14 of 14 : create primary & foreign keys and indexes : {0}".
format(datetime.now() - start_time))
def create_states_and_prep_localities(settings):
start_time = datetime.now()
sql_list = [psma.open_sql_file("01a-create-states-from-sa4s.sql", settings),
psma.open_sql_file("01b-prep-locality-boundaries.sql", settings)]
psma.multiprocess_list("sql", sql_list, settings, logger)
logger.info("\t- Step 1 of 7 : state table created & localities prepped : {0}".format(datetime.now() - start_time))
def boundary_tag_gnaf(pg_cur, settings):
# create bdy table list
# remove localities, postcodes and states as these IDs are already assigned to GNAF addresses
table_list = list()
for table in settings['admin_bdy_list']:
if table[0] not in ["locality_bdys", "postcode_bdys", "state_bdys"]:
# if no analysis tables created - use the full tables instead of the subdivided ones
# WARNING: this can add hours to the processing
if settings['st_subdivide_supported']:
table_name = "{0}_analysis".format(table[0], )
else:
table_name = table[0]
table_list.append([table_name, table[1]])
# create bdy tagged address table
pg_cur.execute(
"DROP TABLE IF EXISTS {0}.address_admin_boundaries CASCADE".format(
settings['gnaf_schema'], ))
create_table_list = list()
create_table_list.append(
"CREATE TABLE {0}.address_admin_boundaries (gid serial NOT NULL,"
"gnaf_pid character varying(16) NOT NULL,"
"alias_principal character(1) NOT NULL,"
"locality_pid character varying(16) NOT NULL,"
"locality_name character varying(100) NOT NULL,"
"postcode character varying(4),"
"state character varying(3) NOT NULL".format(
settings['gnaf_schema'], ))
for table in table_list:
pid_field = table[1]
name_field = pid_field.replace("_pid", "_name")
create_table_list.append(
", {0} character varying(15), {1} character varying(100)".format(
pid_field, name_field))
create_table_list.append(
") WITH (OIDS=FALSE);ALTER TABLE {0}.address_admin_boundaries OWNER TO {1}"
.format(settings['gnaf_schema'], settings['pg_user']))
pg_cur.execute("".join(create_table_list))
i = 0
for address_table in ["address_principals", "address_aliases"]:
# Step 1/4 of 8 : tag gnaf addresses with admin boundary IDs, using multiprocessing
start_time = datetime.now()
# create temp tables
template_sql = psma.open_sql_file(
"04-01a-bdy-tag-create-table-template.sql", settings)
for table in table_list:
pg_cur.execute(template_sql.format(table[0], ))
# create temp tables of bdy tagged gnaf_pids
template_sql = psma.open_sql_file("04-01b-bdy-tag-template.sql",
settings)
sql_list = list()
for table in table_list:
sql = template_sql.format(table[0], table[1])
short_sql_list = psma.split_sql_into_list(
pg_cur, sql, settings['admin_bdys_schema'], table[0], "bdys",
"gid", settings, logger)
if short_sql_list is not None:
sql_list.extend(short_sql_list)
# logger.info('\n'.join(sql_list))
if sql_list is not None:
psma.multiprocess_list("sql", sql_list, settings, logger)
i += 1
logger.info(
"\t- Step {0} of 8 : {1} - gnaf addresses tagged with admin boundary IDs: {2}"
.format(i, address_table,
datetime.now() - start_time))
start_time = datetime.now()
# Step 2/5 of 8 : delete invalid matches, create indexes and analyse tables
sql_list = list()
for table in table_list:
sql = "DELETE FROM {0}.temp_{1}_tags WHERE gnaf_state <> bdy_state AND gnaf_state <> 'OT';" \
"CREATE INDEX temp_{1}_tags_gnaf_pid_idx ON {0}.temp_{1}_tags USING btree(gnaf_pid);" \
"ANALYZE {0}.temp_{1}_tags".format(settings['gnaf_schema'], table[0])
sql_list.append(sql)
psma.multiprocess_list("sql", sql_list, settings, logger)
i += 1
logger.info(
"\t- Step {0} of 8 : {1} - invalid matches deleted & bdy tag indexes created : {2}"
.format(i, address_table,
datetime.now() - start_time))
start_time = datetime.now()
# Step 3/6 of 8 : insert boundary tagged addresses
# create insert statement for multiprocessing
insert_field_list = list()
insert_field_list.append(
"(gnaf_pid, alias_principal, locality_pid, locality_name, postcode, state"
)
insert_join_list = list()
insert_join_list.append("FROM {0}.{1} AS pnts ".format(
settings['gnaf_schema'], address_table))
select_field_list = list()
select_field_list.append(
"SELECT pnts.gnaf_pid, pnts.alias_principal, pnts.locality_pid, "
"pnts.locality_name, pnts.postcode, pnts.state")
drop_table_list = list()
for table in table_list:
pid_field = table[1]
name_field = pid_field.replace("_pid", "_name")
insert_field_list.append(", {0}, {1}".format(
pid_field, name_field))
select_field_list.append(
", temp_{0}_tags.bdy_pid, temp_{0}_tags.bdy_name ".format(
table[0]))
insert_join_list.append(
"LEFT OUTER JOIN {0}.temp_{1}_tags ON pnts.gnaf_pid = temp_{1}_tags.gnaf_pid "
.format(settings['gnaf_schema'], table[0]))
drop_table_list.append(
"DROP TABLE IF EXISTS {0}.temp_{1}_tags;".format(
settings['gnaf_schema'], table[0]))
insert_field_list.append(") ")
insert_statement_list = list()
insert_statement_list.append(
"INSERT INTO {0}.address_admin_boundaries ".format(
settings['gnaf_schema'], ))
insert_statement_list.append("".join(insert_field_list))
insert_statement_list.append("".join(select_field_list))
insert_statement_list.append("".join(insert_join_list))
sql = "".join(insert_statement_list) + ";"
sql_list = psma.split_sql_into_list(pg_cur, sql,
settings['gnaf_schema'],
address_table, "pnts", "gid",
settings, logger)
# logger.info("\n".join(sql_list)
if sql_list is not None:
psma.multiprocess_list("sql", sql_list, settings, logger)
# drop temp tables
pg_cur.execute("".join(drop_table_list))
# get stats
pg_cur.execute("ANALYZE {0}.address_admin_boundaries ".format(
settings['gnaf_schema']))
i += 1
logger.info(
"\t- Step {0} of 8 : {1} - bdy tags added to output table : {2}".
format(i, address_table,
datetime.now() - start_time))
start_time = datetime.now()
# Step 7 of 8 : add index to output table
sql = "CREATE INDEX address_admin_boundaries_gnaf_pid_idx ON {0}.address_admin_boundaries USING btree (gnaf_pid)"\
.format(settings['gnaf_schema'])
pg_cur.execute(sql)
i += 1
logger.info(
"\t- Step {0} of 8 : created index on bdy tagged address table : {1}".
format(i,
datetime.now() - start_time))
start_time = datetime.now()
# Step 8 of 8 : log duplicates - happens when 2 boundaries overlap by a very small amount
# (can be ignored if there's a small number of records affected)
sql = "SELECT gnaf_pid FROM (SELECT Count(*) AS cnt, gnaf_pid FROM {0}.address_admin_boundaries " \
"GROUP BY gnaf_pid) AS sqt WHERE cnt > 1".format(settings['gnaf_schema'])
pg_cur.execute(sql)
i += 1
try:
duplicates = pg_cur.fetchall()
gnaf_pids = list()
for duplicate in duplicates:
gnaf_pids.append("\t\t" + duplicate[0])
logger.warning(
"\t- Step {0} of 8 : found boundary tag duplicates : {1}".format(
i,
datetime.now() - start_time))
logger.warning("\n".join(gnaf_pids))
except psycopg2.Error:
logger.info(
"\t- Step {0} of 8 : no boundary tag duplicates : {1}".format(
i,
datetime.now() - start_time))
def load_raw_admin_boundaries(pg_cur, settings):
start_time = datetime.now()
# drop existing views
pg_cur.execute(
psma.open_sql_file("02-01-drop-admin-bdy-views.sql", settings))
# add locality class authority code table
settings['states_to_load'].extend(["authority_code"])
# create schema
if settings['raw_admin_bdys_schema'] != "public":
pg_cur.execute(
"CREATE SCHEMA IF NOT EXISTS {0} AUTHORIZATION {1}".format(
settings['raw_admin_bdys_schema'], settings['pg_user']))
# set psql connect string and password
psql_str = "psql -U {0} -d {1} -h {2} -p {3}"\
.format(settings['pg_user'], settings['pg_db'], settings['pg_host'], settings['pg_port'])
password_str = ''
if not os.getenv("PGPASSWORD"):
if platform.system() == "Windows":
password_str = "SET"
else:
password_str = "export"
password_str += " PGPASSWORD={0}&&".format(settings['pg_password'])
# get file list
table_list = []
cmd_list1 = []
cmd_list2 = []
for state in settings['states_to_load']:
state = state.lower()
# get a dictionary of Shapefiles and DBFs matching the state
for root, dirs, files in os.walk(
settings['admin_bdys_local_directory']):
for file_name in files:
if file_name.lower().startswith(state + "_"):
if file_name.lower().endswith("_shp.dbf"):
# change file type for spatial files
if file_name.lower().endswith("_polygon_shp.dbf"):
spatial = True
bdy_file = os.path.join(
root, file_name.replace(".dbf", ".shp"))
else:
spatial = False
bdy_file = os.path.join(root, file_name)
bdy_table = file_name.lower().replace(
state + "_", "aus_", 1).replace("_shp.dbf", "")
# set command line parameters depending on whether this is the 1st state (for creating tables)
table_list_add = False
if bdy_table not in table_list:
table_list_add = True
if spatial:
params = "-d -D -s 4283 -i"
else:
params = "-d -D -G -n -i"
else:
if spatial:
params = "-a -D -s 4283 -i"
else:
params = "-a -D -G -n -i"
cmd = "{0}shp2pgsql {1} \"{2}\" {3}.{4} | {5}".format(
password_str, params, bdy_file,
settings['raw_admin_bdys_schema'], bdy_table,
psql_str)
# if locality file from Towns folder: don't add - it's a duplicate
if "town points" not in bdy_file.lower():
if table_list_add:
table_list.append(bdy_table)
cmd_list1.append(cmd)
else:
cmd_list2.append(cmd)
else:
if not bdy_file.lower().endswith(
"_locality_shp.dbf"):
if table_list_add:
table_list.append(bdy_table)
cmd_list1.append(cmd)
else:
cmd_list2.append(cmd)
# logger.info('\n'.join(cmd_list1)
# logger.info('\n'.join(cmd_list2)
# are there any files to load?
if len(cmd_list1) == 0:
logger.fatal(
"No Admin Boundary files found\nACTION: Check your 'admin-bdys-path' argument"
)
else:
# load files in separate processes -
# do the commands that create the tables first before attempting the subsequent insert commands
psma.multiprocess_list("cmd", cmd_list1, settings, logger)
psma.multiprocess_list("cmd", cmd_list2, settings, logger)
logger.info(
"\t- Step 1 of 3 : raw admin boundaries loaded : {0}".format(
datetime.now() - start_time))