100 lines
3.3 KiB
PL/PgSQL
100 lines
3.3 KiB
PL/PgSQL
-- Interfacess of the server extension
|
|
|
|
---- geocode_admin1_polygon(admin1_name text)
|
|
CREATE OR REPLACE FUNCTION geocode_admin1_polygon(user_id name, tx_id bigint, admin1_name text)
|
|
RETURNS Geometry AS $$
|
|
plpy.debug('Entering geocode_admin1_polygon(admin1_name text)')
|
|
plpy.debug('user_id = %s' % user_id)
|
|
|
|
#-- Access control
|
|
#-- TODO: this should be part of cdb python library
|
|
if user_id == 'publicuser':
|
|
plpy.error('The api_key must be provided')
|
|
|
|
#--TODO: rate limiting check
|
|
#--TODO: quota check
|
|
|
|
#-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
|
|
plan = plpy.prepare("SELECT cdb_geocoder_server._geocode_admin1_polygon($1) AS mypolygon", ["text"])
|
|
rv = plpy.execute(plan, [admin1_name], 1)
|
|
|
|
plpy.debug('Returning from Returning from geocode_admin1_polygons')
|
|
return rv[0]["mypolygon"]
|
|
$$ LANGUAGE plpythonu;
|
|
|
|
---- geocode_admin1_polygon(admin1_name text, country_name text)
|
|
CREATE OR REPLACE FUNCTION geocode_admin1_polygon(user_id name, tx_id bigint, admin1_name text, country_name text)
|
|
RETURNS Geometry AS $$
|
|
plpy.debug('Entering geocode_admin1_polygon(admin1_name text, country_name text)')
|
|
plpy.debug('user_id = %s' % user_id)
|
|
|
|
#-- Access control
|
|
#-- TODO: this should be part of cdb python library
|
|
if user_id == 'publicuser':
|
|
plpy.error('The api_key must be provided')
|
|
|
|
#--TODO: rate limiting check
|
|
#--TODO: quota check
|
|
|
|
#-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
|
|
plan = plpy.prepare("SELECT cdb_geocoder_server._geocode_admin1_polygon($1, $2) AS mypolygon", ["text", "text"])
|
|
rv = plpy.execute(plan, [admin1_name, country_name], 1)
|
|
|
|
plpy.debug('Returning from Returning from geocode_admin1_polygon(admin1_name text, country_name text)')
|
|
return rv[0]["mypolygon"]
|
|
$$ LANGUAGE plpythonu;
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
-- Implementation of the server extension
|
|
-- Note: these functions depend on the cdb_geocoder extension
|
|
|
|
---- geocode_admin1_polygon(admin1_name text)
|
|
CREATE OR REPLACE FUNCTION _geocode_admin1_polygon(admin1_name text)
|
|
RETURNS Geometry AS $$
|
|
DECLARE
|
|
ret Geometry;
|
|
BEGIN
|
|
SELECT geom INTO ret
|
|
FROM (
|
|
SELECT q, (
|
|
SELECT the_geom
|
|
FROM global_province_polygons
|
|
WHERE d.c = ANY (synonyms)
|
|
ORDER BY frequency DESC LIMIT 1
|
|
) geom
|
|
FROM (
|
|
SELECT
|
|
trim(replace(lower(admin1_name),'.',' ')) c, admin1_name q
|
|
) d
|
|
) v;
|
|
|
|
RETURN ret;
|
|
END
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
---- geocode_admin1_polygon(admin1_name text, country_name text)
|
|
CREATE OR REPLACE FUNCTION _geocode_admin1_polygon(admin1_name text, country_name text)
|
|
RETURNS Geometry AS $$
|
|
DECLARE
|
|
ret Geometry;
|
|
BEGIN
|
|
WITH p AS (SELECT r.c, r.q, (SELECT iso3 FROM country_decoder WHERE lower(country_name) = ANY (synonyms)) i FROM (SELECT trim(replace(lower(admin1_name),'.',' ')) c, country_name q) r)
|
|
SELECT
|
|
geom INTO ret
|
|
FROM (
|
|
SELECT
|
|
q, (
|
|
SELECT the_geom
|
|
FROM global_province_polygons
|
|
WHERE p.c = ANY (synonyms)
|
|
AND iso3 = p.i
|
|
ORDER BY frequency DESC LIMIT 1
|
|
) geom
|
|
FROM p) n;
|
|
|
|
RETURN ret;
|
|
END
|
|
$$ LANGUAGE plpgsql;
|
|
|