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Diffstat (limited to 'src/exchangedb/0002-purse_decision.sql')
-rw-r--r-- | src/exchangedb/0002-purse_decision.sql | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/exchangedb/0002-purse_decision.sql b/src/exchangedb/0002-purse_decision.sql new file mode 100644 index 000000000..091bd468b --- /dev/null +++ b/src/exchangedb/0002-purse_decision.sql @@ -0,0 +1,143 @@ +-- +-- 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); |