pg_purge_instance.c (1888B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file backenddb/pg_purge_instance.c 18 * @brief Implementation of the purge_instance function for Postgres 19 * @author Iván Ávalos 20 */ 21 #include "platform.h" 22 #include <taler/taler_error_codes.h> 23 #include <taler/taler_dbevents.h> 24 #include <taler/taler_pq_lib.h> 25 #include "pg_purge_instance.h" 26 #include "pg_helper.h" 27 28 /** 29 * Purge an instance and all associated information from our database. 30 * Highly likely to cause undesired data loss. Use with caution. 31 * 32 * @param cls closure 33 * @param merchant_id identifier of the instance 34 * @return database result code 35 */ 36 enum GNUNET_DB_QueryStatus 37 TMH_PG_purge_instance (void *cls, 38 const char *merchant_id) 39 { 40 struct PostgresClosure *pg = cls; 41 struct GNUNET_PQ_QueryParam params[] = { 42 GNUNET_PQ_query_param_string (merchant_id), 43 GNUNET_PQ_query_param_end 44 }; 45 46 check_connection (pg); 47 PREPARE (pg, 48 "purge_instance", 49 "DELETE FROM merchant_instances" 50 " WHERE merchant_instances.merchant_id = $1"); 51 return GNUNET_PQ_eval_prepared_non_select (pg->conn, 52 "purge_instance", 53 params); 54 }