merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

pg_update_product.c (4932B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022, 2024, 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 backenddb/pg_update_product.c
     18  * @brief Implementation of the update_product function for Postgres
     19  * @author Christian Grothoff
     20  * @author Iván Ávalos
     21  */
     22 #include "platform.h"
     23 #include <taler/taler_error_codes.h>
     24 #include <taler/taler_dbevents.h>
     25 #include <taler/taler_pq_lib.h>
     26 #include "pg_update_product.h"
     27 #include "pg_helper.h"
     28 
     29 
     30 enum GNUNET_DB_QueryStatus
     31 TMH_PG_update_product (void *cls,
     32                        const char *instance_id,
     33                        const char *product_id,
     34                        const struct TALER_MERCHANTDB_ProductDetails *pd,
     35                        size_t num_cats,
     36                        const uint64_t *cats,
     37                        bool *no_instance,
     38                        ssize_t *no_cat,
     39                        bool *no_product,
     40                        bool *lost_reduced,
     41                        bool *sold_reduced,
     42                        bool *stocked_reduced)
     43 {
     44   struct PostgresClosure *pg = cls;
     45   struct GNUNET_PQ_QueryParam params[] = {
     46     GNUNET_PQ_query_param_string (instance_id), /* $1 */
     47     GNUNET_PQ_query_param_string (product_id),
     48     GNUNET_PQ_query_param_string (pd->description),
     49     TALER_PQ_query_param_json (pd->description_i18n),
     50     GNUNET_PQ_query_param_string (pd->unit),
     51     GNUNET_PQ_query_param_string (pd->image), /* $6 */
     52     TALER_PQ_query_param_json (pd->taxes),
     53     TALER_PQ_query_param_amount_with_currency (pg->conn,
     54                                                &pd->price), /* $8 */
     55     TALER_PQ_query_param_array_amount_with_currency (
     56       pd->price_array_length,
     57       pd->price_array,
     58       pg->conn), /* $9 */
     59     GNUNET_PQ_query_param_uint64 (&pd->total_stock),  /* $10 */
     60     GNUNET_PQ_query_param_uint32 (&pd->total_stock_frac), /* $11 */
     61     GNUNET_PQ_query_param_bool (pd->allow_fractional_quantity), /* $12 */
     62     GNUNET_PQ_query_param_uint32 (&pd->fractional_precision_level),
     63     GNUNET_PQ_query_param_uint64 (&pd->total_lost),
     64     TALER_PQ_query_param_json (pd->address),
     65     GNUNET_PQ_query_param_timestamp (&pd->next_restock),
     66     GNUNET_PQ_query_param_uint32 (&pd->minimum_age),
     67     GNUNET_PQ_query_param_array_uint64 (num_cats,
     68                                         cats,
     69                                         pg->conn),
     70     GNUNET_PQ_query_param_string (pd->product_name),
     71     GNUNET_PQ_query_param_end
     72   };
     73   uint64_t ncat;
     74   bool cats_found = true;
     75   struct GNUNET_PQ_ResultSpec rs[] = {
     76     GNUNET_PQ_result_spec_bool ("no_instance",
     77                                 no_instance),
     78     GNUNET_PQ_result_spec_bool ("no_product",
     79                                 no_product),
     80     GNUNET_PQ_result_spec_bool ("lost_reduced",
     81                                 lost_reduced),
     82     GNUNET_PQ_result_spec_bool ("sold_reduced",
     83                                 sold_reduced),
     84     GNUNET_PQ_result_spec_bool ("stocked_reduced",
     85                                 stocked_reduced),
     86     GNUNET_PQ_result_spec_allow_null (
     87       GNUNET_PQ_result_spec_uint64 ("no_cat",
     88                                     &ncat),
     89       &cats_found),
     90     GNUNET_PQ_result_spec_end
     91   };
     92   enum GNUNET_DB_QueryStatus qs;
     93 
     94   if ( (pd->total_stock < pd->total_lost + pd->total_sold) ||
     95        (pd->total_lost < pd->total_lost
     96         + pd->total_sold) /* integer overflow */)
     97   {
     98     GNUNET_break (0);
     99     return GNUNET_DB_STATUS_HARD_ERROR;
    100   }
    101   check_connection (pg);
    102   PREPARE (pg,
    103            "update_product",
    104            "SELECT"
    105            " out_lost_reduced AS lost_reduced"
    106            ",out_sold_reduced AS sold_reduced"
    107            ",out_stocked_reduced AS stocked_reduced"
    108            ",out_no_product AS no_product"
    109            ",out_no_cat AS no_cat"
    110            ",out_no_instance AS no_instance"
    111            " FROM merchant_do_update_product"
    112            "($1,$2,$3,$4::TEXT::JSONB,$5,$6,$7::TEXT::JSONB,$8,$9"
    113            ",$10,$11,$12,$13,$14,$15::TEXT::JSONB,$16,$17,$18,$19);");
    114   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
    115                                                  "update_product",
    116                                                  params,
    117                                                  rs);
    118   GNUNET_PQ_cleanup_query_params_closures (params);
    119   *no_cat = (cats_found) ? -1 : (ssize_t) ncat;
    120   return qs;
    121 }