43 lines
1.5 KiB
PL/PgSQL
43 lines
1.5 KiB
PL/PgSQL
-- Interface of the server extension
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CREATE OR REPLACE FUNCTION geocode_admin0_polygons(user_id name, tx_id bigint, country_name text)
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RETURNS Geometry AS $$
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plpy.debug('Entering geocode_admin0_polygons')
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plpy.debug('user_id = %s' % user_id)
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#-- Access control
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#-- TODO: this should be part of cdb python library
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if user_id == 'publicuser':
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plpy.error('The api_key must be provided')
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#--TODO: rate limiting check
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#--TODO: quota check
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#-- Copied from the doc, see http://www.postgresql.org/docs/9.4/static/plpython-database.html
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plan = plpy.prepare("SELECT cdb_geocoder_server._geocode_admin0_polygons($1) AS mypolygon", ["text"])
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rv = plpy.execute(plan, [country_name], 1)
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plpy.debug('Returning from Returning from geocode_admin0_polygons')
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return rv[0]["mypolygon"]
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$$ LANGUAGE plpythonu;
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--------------------------------------------------------------------------------
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-- Implementation of the server extension
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-- Note: these functions depend on the cdb_geocoder extension
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CREATE OR REPLACE FUNCTION _geocode_admin0_polygons(country_name text)
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RETURNS Geometry AS $$
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DECLARE
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ret Geometry;
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BEGIN
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SELECT n.the_geom as geom INTO ret
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FROM (SELECT q, lower(regexp_replace(q, '[^a-zA-Z\u00C0-\u00ff]+', '', 'g'))::text x
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FROM (SELECT country_name q) g) d
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LEFT OUTER JOIN admin0_synonyms s ON name_ = d.x
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LEFT OUTER JOIN ne_admin0_v3 n ON s.adm0_a3 = n.adm0_a3 GROUP BY d.q, n.the_geom, s.adm0_a3;
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RETURN ret;
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END
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$$ LANGUAGE plpgsql;
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