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--
-- This file is part of TALER
-- Copyright (C) 2014--2023 Taler Systems SA
--
-- TALER 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 3, or (at your option) any later version.
--
-- TALER 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
-- TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
--
CREATE FUNCTION create_table_purse_decision(
IN partition_suffix TEXT DEFAULT NULL
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'purse_decision';
BEGIN
PERFORM create_partitioned_table(
'CREATE TABLE %I '
'(purse_decision_serial_id BIGINT GENERATED BY DEFAULT AS IDENTITY'
',purse_pub BYTEA NOT NULL CHECK (LENGTH(purse_pub)=32)'
',action_timestamp INT8 NOT NULL'
',refunded BOOL NOT NULL'
',PRIMARY KEY (purse_pub)'
') %s ;'
,table_name
,'PARTITION BY HASH (purse_pub)'
,partition_suffix
);
PERFORM comment_partitioned_table(
'Purses that were decided upon (refund or merge)'
,table_name
,partition_suffix
);
PERFORM comment_partitioned_column(
'Public key of the purse'
,'purse_pub'
,table_name
,partition_suffix
);
END
$$;
CREATE FUNCTION constrain_table_purse_decision(
IN partition_suffix TEXT
)
RETURNS VOID
LANGUAGE plpgsql
AS $$
DECLARE
table_name TEXT DEFAULT 'purse_decision';
BEGIN
table_name = concat_ws('_', table_name, partition_suffix);
EXECUTE FORMAT (
'ALTER TABLE ' || table_name ||
' ADD CONSTRAINT ' || table_name || '_purse_action_serial_id_key'
' UNIQUE (purse_decision_serial_id) '
);
END
$$;
CREATE OR REPLACE FUNCTION purse_decision_insert_trigger()
RETURNS trigger
LANGUAGE plpgsql
AS $$
BEGIN
UPDATE purse_requests
SET was_decided=TRUE
WHERE purse_pub=NEW.purse_pub;
IF NEW.refunded
THEN
INSERT INTO coin_history
(coin_pub
,table_name
,serial_id)
SELECT
pd.coin_pub
,'purse_decision'
,NEW.purse_decision_serial_id
FROM purse_deposits pd
WHERE purse_pub = NEW.purse_pub;
ELSE
INSERT INTO reserve_history
(reserve_pub
,table_name
,serial_id)
SELECT
reserve_pub
,'purse_decision'
,NEW.purse_decision_serial_id
FROM purse_merges
WHERE purse_pub=NEW.purse_pub;
END IF;
RETURN NEW;
END $$;
COMMENT ON FUNCTION purse_decision_insert_trigger()
IS 'Automatically generate coin history entry and update decision status for the purse.';
CREATE FUNCTION master_table_purse_decision()
RETURNS VOID
LANGUAGE plpgsql
AS $$
BEGIN
CREATE TRIGGER purse_decision_on_insert
AFTER INSERT
ON purse_decision
FOR EACH ROW EXECUTE FUNCTION purse_decision_insert_trigger();
END $$;
INSERT INTO exchange_tables
(name
,version
,action
,partitioned
,by_range)
VALUES
('purse_decision'
,'exchange-0002'
,'create'
,TRUE
,FALSE),
('purse_decision'
,'exchange-0002'
,'constrain'
,TRUE
,FALSE),
('purse_decision'
,'exchange-0002'
,'master'
,TRUE
,FALSE);
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