Google geocoder working

2016-01-27 19:04:27 +01:00
parent 731eb8c74f
commit e7c58b9a51
39 changed files with 2349 additions and 34 deletions
--- a/server/extension/sql/0.2.0/40_admin1.sql
+++ b/server/extension/sql/0.2.0/40_admin1.sql
@@ -0,0 +1,89 @@
+-- Interfacess of the server extension
+
+---- cdb_geocode_admin1_polygon(admin1_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server.cdb_geocode_admin1_polygon(username text, orgname text, admin1_name text)
+RETURNS Geometry AS $$
+    plpy.debug('Entering cdb_geocode_admin1_polygon(admin1_name text)')
+    plpy.debug('user = %s' % username)
+
+    #--TODO: rate limiting check
+    #--TODO: quota check
+
+    #-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
+    plan = plpy.prepare("SELECT cdb_geocoder_server._cdb_geocode_admin1_polygon($1) AS mypolygon", ["text"])
+    rv = plpy.execute(plan, [admin1_name], 1)
+
+    plpy.debug('Returning from Returning from cdb_geocode_admin1_polygons')
+    return rv[0]["mypolygon"]
+$$ LANGUAGE plpythonu;
+
+---- cdb_geocode_admin1_polygon(admin1_name text, country_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server.cdb_geocode_admin1_polygon(username text, orgname text, admin1_name text, country_name text)
+RETURNS Geometry AS $$
+    plpy.debug('Entering cdb_geocode_admin1_polygon(admin1_name text, country_name text)')
+    plpy.debug('user = %s' % username)
+
+    #--TODO: rate limiting check
+    #--TODO: quota check
+
+    #-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
+    plan = plpy.prepare("SELECT cdb_geocoder_server._cdb_geocode_admin1_polygon($1, $2) AS mypolygon", ["text", "text"])
+    rv = plpy.execute(plan, [admin1_name, country_name], 1)
+
+    plpy.debug('Returning from Returning from cdb_geocode_admin1_polygon(admin1_name text, country_name text)')
+    return rv[0]["mypolygon"]
+$$ LANGUAGE plpythonu;
+
+--------------------------------------------------------------------------------
+
+-- Implementation of the server extension
+-- Note: these functions depend on the cdb_geocoder extension
+
+---- cdb_geocode_admin1_polygon(admin1_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._cdb_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;
+
+---- cdb_geocode_admin1_polygon(admin1_name text, country_name text)
+CREATE OR REPLACE FUNCTION cdb_geocoder_server._cdb_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;
+