pg_select_otp_serial.c (2204B)
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_select_otp_serial.c 18 * @brief Implementation of the select_otp_serial 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 "pg_select_otp_serial.h" 26 #include "pg_helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TMH_PG_select_otp_serial (void *cls, 31 const char *instance_id, 32 const char *otp_id, 33 uint64_t *serial) 34 { 35 struct PostgresClosure *pg = cls; 36 struct GNUNET_PQ_QueryParam params[] = { 37 GNUNET_PQ_query_param_string (instance_id), 38 GNUNET_PQ_query_param_string (otp_id), 39 GNUNET_PQ_query_param_end 40 }; 41 struct GNUNET_PQ_ResultSpec rs[] = { 42 GNUNET_PQ_result_spec_uint64 ("otp_serial", 43 serial), 44 GNUNET_PQ_result_spec_end 45 }; 46 47 check_connection (pg); 48 PREPARE (pg, 49 "select_otp_serial", 50 "SELECT" 51 " otp_serial" 52 " FROM merchant_otp_devices" 53 " JOIN merchant_instances" 54 " USING (merchant_serial)" 55 " WHERE merchant_instances.merchant_id=$1" 56 " AND merchant_otp_devices.otp_id=$2"); 57 return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 58 "select_otp_serial", 59 params, 60 rs); 61 }