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-- ==============================================================
-- GNUmed database schema change script
--
-- License: GPL v2 or later
-- Author: karsten.hilbert@gmx.net
--
-- ==============================================================
\set ON_ERROR_STOP 1
set check_function_bodies to on;
--set default_transaction_read_only to off;
-- ==============================================================
create or replace function gm.register_notifying_table(name, name)
returns boolean
language 'plpgsql'
as '
DECLARE
_namespace alias for $1;
_table alias for $2;
dummy RECORD;
BEGIN
-- does table exist ?
select relname into dummy from pg_class where
relname = _table and
relnamespace = (select oid from pg_namespace where nspname = _namespace)
;
if not found then
raise exception ''register_notifying_table(): Table [%.%] does not exist.'', _namespace, _table;
end if;
-- make sure we can insert
delete from gm.notifying_tables where
table_name = _table
and schema_name = _namespace;
insert into gm.notifying_tables (
schema_name,
table_name
) values (
_namespace,
_table
);
return true;
END;';
comment on function gm.register_notifying_table(name, name) is
'Register given table for notification trigger generator. Parameters are: (schema, table)';
drop function if exists gm.register_notifying_table(name, name, name) cascade;
-- --------------------------------------------------------------
-- legacy functions:
create or replace function gm.add_table_for_notifies(name, name)
returns boolean
language SQL
as 'select gm.register_notifying_table($1, $2);'
;
drop function if exists gm.add_table_for_notifies(name, name, name) cascade;
-- --------------------------------------------------------------
select gm.log_script_insertion('v20-gm-register_notifying_table.sql', '20.0');
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