cartodb-postgresql/scripts-available/CDB_Conf.sql
Juan Ignacio Sánchez Lara a75a337296 _CDB_Conf_Cache SD-based
2015-08-18 10:44:10 +02:00

59 lines
1.8 KiB
PL/PgSQL

-- This will trigger NOTICE if CDB_CONF already exists
DO LANGUAGE 'plpgsql' $$
BEGIN
CREATE TABLE IF NOT EXISTS cartodb.CDB_CONF ( PARAM TEXT PRIMARY KEY, CONF TEXT NOT NULL );
EXECUTE format('GRANT SELECT ON cartodb.CDB_CONF TO %s', cartodb.CDB_Organization_Member_Group_Role_Member_Name());
END
$$;
CREATE OR REPLACE
FUNCTION cartodb.CDB_Conf_SetConf(param text, conf text)
RETURNS void AS $$
BEGIN
PERFORM cartodb.CDB_Conf_RemoveConf(param);
EXECUTE 'INSERT INTO cartodb.CDB_CONF (PARAM, CONF) VALUES ($1, $2);' USING param, conf;
END
$$ LANGUAGE PLPGSQL VOLATILE;
CREATE OR REPLACE
FUNCTION cartodb.CDB_Conf_RemoveConf(param text)
RETURNS void AS $$
BEGIN
PERFORM cartodb._CDB_Conf_Cache('remove', param);
EXECUTE 'DELETE FROM cartodb.CDB_CONF WHERE PARAM = $1;' USING param;
END
$$ LANGUAGE PLPGSQL VOLATILE;
CREATE OR REPLACE
FUNCTION cartodb.CDB_Conf_GetConf(param text)
RETURNS TEXT AS $$
DECLARE
conf TEXT;
BEGIN
EXECUTE 'select cartodb._CDB_Conf_Cache(''get'', $1) as conf;' INTO conf USING param;
RETURN conf;
END
$$ LANGUAGE PLPGSQL STABLE;
-- Single cache function allowing SD private dict usage
CREATE OR REPLACE
FUNCTION cartodb._CDB_Conf_Cache(operation text, param text)
RETURNS TEXT AS
$$
if 'conf' not in SD:
SD['conf'] = dict()
if operation == 'remove':
SD['conf'][param] = None
elif operation == 'get':
if param not in SD['conf']:
value = None
response = plpy.execute("SELECT conf FROM cartodb.CDB_CONF WHERE PARAM = '%s'" % param);
if len(response) > 0:
value = response[0]['conf']
SD['conf'][param] = value
return SD['conf'][param]
else:
raise Exception('Unknown operation: %s' % operation)
$$ LANGUAGE 'plpythonu' VOLATILE;