get_purse_info.c (2199B)
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/auditordb/get_purse_info.c 18 * @brief Implementation of the get_purse_info function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "auditor-database/get_purse_info.h" 23 #include "pg_helper.h" 24 25 enum GNUNET_DB_QueryStatus 26 TALER_AUDITORDB_get_purse_info ( 27 struct TALER_AUDITORDB_PostgresContext *pg, 28 const struct TALER_PurseContractPublicKeyP *purse_pub, 29 uint64_t *rowid, 30 struct TALER_Amount *balance, 31 struct GNUNET_TIME_Timestamp *expiration_date) 32 { 33 struct GNUNET_PQ_QueryParam params[] = { 34 GNUNET_PQ_query_param_auto_from_type (purse_pub), 35 GNUNET_PQ_query_param_end 36 }; 37 struct GNUNET_PQ_ResultSpec rs[] = { 38 TALER_PQ_RESULT_SPEC_AMOUNT ("balance", 39 balance), 40 GNUNET_PQ_result_spec_timestamp ("expiration_date", 41 expiration_date), 42 GNUNET_PQ_result_spec_uint64 ("auditor_purses_rowid", 43 rowid), 44 GNUNET_PQ_result_spec_end 45 }; 46 47 PREPARE (pg, 48 "auditor_get_purse_info", 49 "SELECT" 50 " auditor_purses_rowid" 51 ",expiration_date" 52 ",balance" 53 " FROM auditor_purses" 54 " WHERE purse_pub=$1"); 55 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 56 "auditor_get_purse_info", 57 params, 58 rs); 59 }