lookup_order_summary.c (2940B)
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 src/backenddb/lookup_order_summary.c 18 * @brief Implementation of the lookup_order_summary 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 "merchant-database/lookup_order_summary.h" 26 #include "helper.h" 27 28 enum GNUNET_DB_QueryStatus 29 TALER_MERCHANTDB_lookup_order_summary (struct TALER_MERCHANTDB_PostgresContext *pg, 30 const char *instance_id, 31 const char *order_id, 32 struct GNUNET_TIME_Timestamp *timestamp, 33 uint64_t *order_serial) 34 { 35 struct GNUNET_PQ_QueryParam params[] = { 36 GNUNET_PQ_query_param_string (instance_id), 37 GNUNET_PQ_query_param_string (order_id), 38 GNUNET_PQ_query_param_end 39 }; 40 struct GNUNET_PQ_ResultSpec rs[] = { 41 GNUNET_PQ_result_spec_uint64 ("order_serial", 42 order_serial), 43 GNUNET_PQ_result_spec_timestamp ("creation_time", 44 timestamp), 45 GNUNET_PQ_result_spec_end 46 }; 47 48 check_connection (pg); 49 PREPARE (pg, 50 "lookup_order_summary", 51 "(SELECT" 52 " creation_time" 53 ",order_serial" 54 " FROM merchant_contract_terms" 55 " WHERE merchant_contract_terms.merchant_serial=" 56 " (SELECT merchant_serial " 57 " FROM merchant_instances" 58 " WHERE merchant_id=$1)" 59 " AND merchant_contract_terms.order_id=$2)" 60 "UNION" 61 "(SELECT" 62 " creation_time" 63 ",order_serial" 64 " FROM merchant_orders" 65 " WHERE merchant_orders.merchant_serial=" 66 " (SELECT merchant_serial " 67 " FROM merchant_instances" 68 " WHERE merchant_id=$1)" 69 " AND merchant_orders.order_id=$2)"); 70 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 71 "lookup_order_summary", 72 params, 73 rs); 74 }