update_contract_session.c (3363B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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 src/backenddb/update_contract_session.c 18 * @brief Implementation of the update_contract_session function for Postgres 19 * @author Christian Grothoff 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 "merchant-database/update_contract_session.h" 26 #include "helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TALER_MERCHANTDB_update_contract_session (struct TALER_MERCHANTDB_PostgresContext *pg, 31 const char *instance_id, 32 const struct TALER_PrivateContractHashP *h_contract_terms, 33 const char *session_id, 34 char **fulfillment_url, 35 bool *refunded) 36 { 37 struct GNUNET_PQ_QueryParam params[] = { 38 GNUNET_PQ_query_param_string (instance_id), 39 GNUNET_PQ_query_param_auto_from_type (h_contract_terms), 40 GNUNET_PQ_query_param_string (session_id), 41 GNUNET_PQ_query_param_end 42 }; 43 struct GNUNET_PQ_ResultSpec rs[] = { 44 GNUNET_PQ_result_spec_allow_null ( 45 GNUNET_PQ_result_spec_string ("fulfillment_url", 46 fulfillment_url), 47 NULL), 48 GNUNET_PQ_result_spec_bool ("refunded", 49 refunded), 50 GNUNET_PQ_result_spec_end 51 }; 52 53 /* Session ID must always be given by the caller. */ 54 GNUNET_assert (NULL != session_id); 55 56 /* no preflight check here, run in transaction by caller! */ 57 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 58 "Updating session for h_contract_terms '%s' of `%s' to `%s'\n", 59 GNUNET_h2s (&h_contract_terms->hash), 60 instance_id, 61 session_id); 62 PREPARE (pg, 63 "update_contract_session", 64 "UPDATE merchant_contract_terms mct SET" 65 " session_id=$3" 66 " WHERE h_contract_terms=$2" 67 " AND merchant_serial=" 68 " (SELECT merchant_serial" 69 " FROM merchant_instances" 70 " WHERE merchant_id=$1)" 71 " RETURNING" 72 " contract_terms->>'fulfillment_url' AS fulfillment_url" 73 " ,EXISTS (SELECT 1" 74 " FROM merchant_refunds mr" 75 " WHERE order_serial=mct.order_serial" 76 " ) AS refunded"); 77 *fulfillment_url = NULL; 78 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 79 "update_contract_session", 80 params, 81 rs); 82 }