update_product.h (3435B)
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/include/merchant-database/update_product.h 18 * @brief implementation of the update_product function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef MERCHANT_DATABASE_UPDATE_PRODUCT_H 22 #define MERCHANT_DATABASE_UPDATE_PRODUCT_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 * Update details about a particular product. Note that the 32 * transaction must enforce that the sold/stocked/lost counters 33 * are not reduced. 34 * 35 * @param pg database context 36 * @param instance_id instance to lookup products for 37 * @param product_id product to lookup 38 * @param num_cats length of @a cats array 39 * @param cats number of categories the product is in 40 * @param[out] no_instance the update failed as the instance is unknown 41 * @param[out] no_cat set to -1 on success, otherwise the update failed and this is set 42 * to the index of a category in @a cats that is unknown 43 * @param[out] no_product the @a product_id is unknown 44 * @param[out] lost_reduced the update failed as the counter of units lost would have been lowered 45 * @param[out] sold_reduced the update failed as the counter of units sold would have been lowered 46 * @param[out] stocked_reduced the update failed as the counter of units stocked would have been lowered 47 * @param[out] pd set to the product details on success, can be NULL 48 * (in that case we only want to check if the product exists) 49 * total_sold in @a pd is ignored, total_lost must not 50 * exceed total_stock minus the existing total_sold; 51 * total_sold and total_stock must be larger or equal to 52 * the existing value; 53 * @param[out] no_group set to true if the product group in @a pd is unknown 54 * @param[out] no_pot set to true if the money pot in @a pd is unknown 55 * @return database result code 56 */ 57 enum GNUNET_DB_QueryStatus 58 TALER_MERCHANTDB_update_product (struct TALER_MERCHANTDB_PostgresContext *pg, 59 const char *instance_id, 60 const char *product_id, 61 const struct TALER_MERCHANTDB_ProductDetails *pd, 62 size_t num_cats, 63 const uint64_t *cats, 64 bool *no_instance, 65 ssize_t *no_cat, 66 bool *no_product, 67 bool *lost_reduced, 68 bool *sold_reduced, 69 bool *stocked_reduced, 70 bool *no_group, 71 bool *no_pot); 72 73 #endif