select_category_by_name.c (2143B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2024 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/select_category_by_name.c 18 * @brief Implementation of the select_category_by_name function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "platform.h" 22 #include <taler/taler_pq_lib.h> 23 #include "merchant-database/select_category_by_name.h" 24 #include "helper.h" 25 26 27 enum GNUNET_DB_QueryStatus 28 TALER_MERCHANTDB_select_category_by_name ( 29 struct TALER_MERCHANTDB_PostgresContext *pg, 30 const char *instance_id, 31 const char *category_name, 32 json_t **name_i18n, 33 uint64_t *category_id) 34 { 35 struct GNUNET_PQ_QueryParam params[] = { 36 GNUNET_PQ_query_param_string (category_name), 37 GNUNET_PQ_query_param_end 38 }; 39 struct GNUNET_PQ_ResultSpec rs[] = { 40 GNUNET_PQ_result_spec_uint64 ("category_serial", 41 category_id), 42 TALER_PQ_result_spec_json ("category_name_i18n", 43 name_i18n), 44 GNUNET_PQ_result_spec_end 45 }; 46 47 GNUNET_assert (NULL != pg->current_merchant_id); 48 GNUNET_assert (0 == strcmp (instance_id, 49 pg->current_merchant_id)); 50 check_connection (pg); 51 TMH_PQ_prepare_anon (pg, 52 "SELECT" 53 " category_serial" 54 ",category_name_i18n::TEXT" 55 " FROM merchant_categories" 56 " WHERE category_name=$1"); 57 return GNUNET_PQ_eval_prepared_singleton_select ( 58 pg->conn, 59 "", 60 params, 61 rs); 62 }