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-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--
-- PostGIS - Spatial Types for PostgreSQL
-- http://www.postgis.net
--
-- Copyright (C) 2011 Regina Obe <lr@pcorp.us>
--
-- This is free software; you can redistribute and/or modify it under
-- the terms of the GNU General Public Licence. See the COPYING file.
--
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--{
-- AddToSearchPath(schema_name)
--
-- Adds the specified schema to the database search path
-- if it is not already in the database search path
-- This is a helper function for upgrade/install
-- We may want to move this function as a generic helper
CREATE OR REPLACE FUNCTION topology.AddToSearchPath(a_schema_name varchar)
RETURNS text
AS
$$
DECLARE
var_result text;
var_cur_search_path text;
BEGIN
SELECT reset_val INTO var_cur_search_path FROM pg_settings WHERE name = 'search_path';
IF var_cur_search_path LIKE '%' || quote_ident(a_schema_name) || '%' THEN
var_result := a_schema_name || ' already in database search_path';
ELSE
var_cur_search_path := var_cur_search_path || ', '
|| quote_ident(a_schema_name);
EXECUTE 'ALTER DATABASE ' || quote_ident(current_database())
|| ' SET search_path = ' || var_cur_search_path;
var_result := a_schema_name || ' has been added to end of database search_path ';
END IF;
EXECUTE 'SET search_path = ' || var_cur_search_path;
RETURN var_result;
END
$$
LANGUAGE 'plpgsql' VOLATILE STRICT;
--} AddToSearchPath
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