merchant

Merchant backend to process payments, run by merchants
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update_product_group.c (2509B)

      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/backenddb/update_product_group.c
     18  * @brief Implementation of the update_product_group function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_error_codes.h>
     23 #include <taler/taler_dbevents.h>
     24 #include <taler/taler_pq_lib.h>
     25 #include "merchant-database/update_product_group.h"
     26 #include "helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TALER_MERCHANTDB_update_product_group (
     31   struct TALER_MERCHANTDB_PostgresContext *pg,
     32   const char *instance_id,
     33   uint64_t product_group_id,
     34   const char *name,
     35   const char *description,
     36   bool *conflict)
     37 {
     38   struct GNUNET_PQ_QueryParam params[] = {
     39     GNUNET_PQ_query_param_string (instance_id),
     40     GNUNET_PQ_query_param_uint64 (&product_group_id),
     41     GNUNET_PQ_query_param_string (name),
     42     GNUNET_PQ_query_param_string (description),
     43     GNUNET_PQ_query_param_end
     44   };
     45   bool not_found;
     46   struct GNUNET_PQ_ResultSpec rs[] = {
     47     GNUNET_PQ_result_spec_bool ("conflict",
     48                                 conflict),
     49     GNUNET_PQ_result_spec_bool ("not_found",
     50                                 &not_found),
     51     GNUNET_PQ_result_spec_end
     52   };
     53   enum GNUNET_DB_QueryStatus qs;
     54 
     55   check_connection (pg);
     56 
     57   PREPARE (pg,
     58            "update_product_group",
     59            "SELECT"
     60            " out_conflict AS conflict"
     61            ",out_not_found AS not_found"
     62            " FROM merchant_do_update_product_group"
     63            "($1,$2,$3,$4);");
     64   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     65                                                  "update_product_group",
     66                                                  params,
     67                                                  rs);
     68   if (qs <= 0)
     69     return qs;
     70   if (not_found)
     71     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     72   return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     73 }