select_category.h (2046B)
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/include/merchant-database/select_category.h 18 * @brief implementation of the select_category function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef MERCHANT_DATABASE_SELECT_CATEGORY_H 22 #define MERCHANT_DATABASE_SELECT_CATEGORY_H 23 24 #include <taler/taler_util.h> 25 #include <taler/taler_json_lib.h> 26 #include "merchantdb_lib.h" 27 28 29 struct TALER_MERCHANTDB_PostgresContext; 30 /** 31 * Lookup details about product category. 32 * 33 * @param pg database context 34 * @param instance_id instance to lookup template for 35 * @param category_id category to update 36 * @param[out] cd set to the category details on success, can be NULL 37 * (in that case we only want to check if the category exists) 38 * @param[out] num_products set to length of @a products array 39 * @param[out] products set to buffer with @a num_products 0-terminated strings with the product IDs, caller must free() it. 40 * @return database result code 41 */ 42 enum GNUNET_DB_QueryStatus 43 TALER_MERCHANTDB_select_category (struct TALER_MERCHANTDB_PostgresContext *pg, 44 const char *instance_id, 45 uint64_t category_id, 46 struct TALER_MERCHANTDB_CategoryDetails *cd, 47 size_t *num_products, 48 char **products); 49 50 #endif