select_product_groups.h (2241B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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_product_groups.h 18 * @brief implementation of the select_product_groups function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef MERCHANT_DATABASE_SELECT_PRODUCT_GROUPS_H 22 #define MERCHANT_DATABASE_SELECT_PRODUCT_GROUPS_H 23 24 #include <taler/taler_util.h> 25 #include <taler/taler_json_lib.h> 26 #include "merchantdb_lib.h" 27 28 29 /** 30 * Typically called by `select_product_groups`. 31 * 32 * @param cls closure 33 * @param product_group_id ID of the product group 34 * @param group_name set to name of the group 35 * @param group_description set to description of the group 36 */ 37 typedef void 38 (*TALER_MERCHANTDB_ProductGroupsCallback)( 39 void *cls, 40 uint64_t product_group_id, 41 const char *group_name, 42 const char *group_description); 43 44 45 /** 46 * Lookup all of the product groups the given instance has configured. 47 * 48 * @param pg database context 49 * @param instance_id instance to lookup product groups for 50 * @param limit number of entries to return, negative for descending in execution time, 51 * positive for ascending in execution time 52 * @param offset expected_transfer_serial number of the transfer we want to offset from 53 * @param cb function to call on all groups found 54 * @param cb_cls closure for @a cb 55 * @return database result code 56 */ 57 enum GNUNET_DB_QueryStatus 58 TALER_MERCHANTDB_select_product_groups ( 59 struct TALER_MERCHANTDB_PostgresContext *pg, 60 const char *instance_id, 61 int64_t limit, 62 uint64_t offset, 63 TALER_MERCHANTDB_ProductGroupsCallback cb, 64 void *cb_cls); 65 66 67 #endif