35 lines
1.5 KiB
PL/PgSQL
35 lines
1.5 KiB
PL/PgSQL
------------------------------------------------------------------------------;
|
|
----
|
|
---- locality-trigger.sql: compute localities for addresses
|
|
----
|
|
---- This program is free software; you can redistribute it and/or
|
|
---- modify it under the terms of the GNU General Public License
|
|
---- as published by the Free Software Foundation; either version 2
|
|
---- of the License, or (at your option) any later version.
|
|
----
|
|
---- This program is distributed in the hope that it will be useful,
|
|
---- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
---- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
---- GNU General Public License for more details.
|
|
----
|
|
---- You should have received a copy of the GNU General Public License
|
|
---- along with this program; if not, write to the Free Software
|
|
---- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
|
---- USA.
|
|
----
|
|
---- Copyright (C) 2016 Simon Brooke for Radical Independence Campaign
|
|
----
|
|
------------------------------------------------------------------------------;
|
|
|
|
---- See also: src/cljc/locality.cljc
|
|
|
|
CREATE FUNCTION compute_locality() RETURNS trigger AS $compute_locality$
|
|
BEGIN
|
|
NEW.locality = (1000 * floor(NEW.latitude * 100)) -
|
|
floor(NEW.longitude * 100);
|
|
RETURN NEW;
|
|
END;
|
|
$compute_locality$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER compute_locality BEFORE INSERT OR UPDATE ON addresses
|
|
FOR EACH ROW EXECUTE PROCEDURE compute_locality();
|