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#20: stored function for undo transaction

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TMA 2025-04-21 19:56:39 +02:00
parent c8892f825c
commit 69c405f715
2 changed files with 65 additions and 1 deletions
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2
brmbar3/brmbar/Shop.py
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@ -277,6 +277,6 @@ class Shop:
# memo = 'undo %d (%s)' % (splitid, memo) # memo = 'undo %d (%s)' % (splitid, memo)
# amount = -amount # amount = -amount
# self.db.execute("INSERT INTO transaction_splits (transaction, side, account, amount, memo) VALUES (%s, %s, %s, %s, %s)", [transaction, side, account, amount, memo]) # self.db.execute("INSERT INTO transaction_splits (transaction, side, account, amount, memo) VALUES (%s, %s, %s, %s, %s)", [transaction, side, account, amount, memo])
transaction = self.db.execute_and_fetch("CALL undo_transaction(%s)",[oldtid])[0] transaction = self.db.execute_and_fetch("SELECT public.undo_transaction(%s)",[oldtid])[0]
self.db.commit() self.db.commit()
return transaction return transaction

64
brmbar3/schema/0020-shop-undo.sql Normal file
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@ -0,0 +1,64 @@
--
-- 0020-shop-undo.sql
--
-- #20 - stored function for undo transaction
--
-- ISC License
--
-- Copyright 2023-2025 Brmlab, z.s.
-- TMA <tma+hs@jikos.cz>
--
-- Permission to use, copy, modify, and/or distribute this software
-- for any purpose with or without fee is hereby granted, provided
-- that the above copyright notice and this permission notice appear
-- in all copies.
--
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
-- WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-- WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
-- AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
-- CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-- OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-- NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-- CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
--
-- To require fully-qualified names
SELECT pg_catalog.set_config('search_path', '', false);
DO $upgrade_block$
BEGIN
IF brmbar_privileged.has_exact_schema_version(19) THEN
CREATE OR REPLACE FUNCTION public.undo_transaction(
IN i_id public.transactions.id%TYPE)
RETURNS public.transactions.id%TYPE
VOLATILE NOT LEAKPROOF LANGUAGE plpgsql AS $fn$
DECLARE
v_ntrn_id public.transactions.id%TYPE;
v_old_trn public.transactions%ROWTYPE;
v_old_split public.transaction_splits%ROWTYPE;
BEGIN
SELECT * INTO v_old_trn FROM public.transactions WHERE id = i_id;
INSERT INTO transactions ("description") VALUES ('undo '||o_id||' ('||v_old_trn.description||')') RETURNING id into v_ntrn_id;
FOR v_old_split IN
SELECT * FROM transaction_splits WHERE "transaction" = i_id
LOOP
INSERT INTO transaction_splits ("transaction", "side", "account", "amount", "memo")
VALUES (v_ntrn_id, v_old_split.side, v_old_split.account, -v_old_split.amount,
'undo ' || v_old_split.id || ' (' || v_old_split.memo || ')' );
END LOOP;
RETURN v_ntrn_id;
END;
$fn$;
PERFORM brmbar_privileged.upgrade_schema_version_to(20);
END IF;
END;
$upgrade_block$;
-- vim: set ft=plsql :