pg_select_purse.c (3569B)
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 pg_select_purse.c 18 * @brief Implementation of the select_purse function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "taler/exchange-database/select_purse.h" 23 #include "helper.h" 24 25 26 enum GNUNET_DB_QueryStatus 27 TALER_EXCHANGEDB_select_purse ( 28 struct TALER_EXCHANGEDB_PostgresContext *pg, 29 const struct TALER_PurseContractPublicKeyP *purse_pub, 30 struct GNUNET_TIME_Timestamp *purse_creation, 31 struct GNUNET_TIME_Timestamp *purse_expiration, 32 struct TALER_Amount *amount, 33 struct TALER_Amount *deposited, 34 struct TALER_PrivateContractHashP *h_contract_terms, 35 struct GNUNET_TIME_Timestamp *merge_timestamp, 36 bool *purse_deleted, 37 bool *purse_refunded) 38 { 39 struct GNUNET_PQ_QueryParam params[] = { 40 GNUNET_PQ_query_param_auto_from_type (purse_pub), 41 GNUNET_PQ_query_param_end 42 }; 43 struct GNUNET_PQ_ResultSpec rs[] = { 44 GNUNET_PQ_result_spec_timestamp ("purse_expiration", 45 purse_expiration), 46 GNUNET_PQ_result_spec_timestamp ("purse_creation", 47 purse_creation), 48 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", 49 amount), 50 TALER_PQ_RESULT_SPEC_AMOUNT ("balance", 51 deposited), 52 GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms", 53 h_contract_terms), 54 GNUNET_PQ_result_spec_allow_null ( 55 GNUNET_PQ_result_spec_timestamp ("merge_timestamp", 56 merge_timestamp), 57 NULL), 58 GNUNET_PQ_result_spec_bool ("purse_deleted", 59 purse_deleted), 60 GNUNET_PQ_result_spec_allow_null ( 61 GNUNET_PQ_result_spec_bool ("purse_refunded", 62 purse_refunded), 63 NULL), 64 GNUNET_PQ_result_spec_end 65 }; 66 67 PREPARE (pg, 68 "select_purse", 69 "SELECT " 70 " pr.merge_pub" 71 ",pr.purse_creation" 72 ",pr.purse_expiration" 73 ",pr.h_contract_terms" 74 ",pr.amount_with_fee" 75 ",pr.balance" 76 ",pm.merge_timestamp" 77 ",pd.purse_sig IS NOT NULL AS purse_deleted" 78 ",pc.refunded AS purse_refunded" 79 " FROM purse_requests pr" 80 " LEFT JOIN purse_merges pm ON (pm.purse_pub = pr.purse_pub)" 81 " LEFT JOIN purse_decision pc ON (pc.purse_pub = pr.purse_pub)" 82 " LEFT JOIN purse_deletion pd ON (pd.purse_pub = pr.purse_pub)" 83 " WHERE pr.purse_pub=$1;"); 84 *merge_timestamp = GNUNET_TIME_UNIT_FOREVER_TS; 85 *purse_refunded = false; 86 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 87 "select_purse", 88 params, 89 rs); 90 }