merchant

Merchant backend to process payments, run by merchants
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pg_select_money_pot.c (2648B)

      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 backenddb/pg_select_money_pot.c
     18  * @brief Implementation of the select_money_pot function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/platform.h"
     22 #include <taler/taler_error_codes.h>
     23 #include <taler/taler_dbevents.h>
     24 #include <taler/taler_pq_lib.h>
     25 #include "pg_select_money_pot.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TMH_PG_select_money_pot (void *cls,
     31                          const char *instance_id,
     32                          uint64_t money_pot_id,
     33                          char **name,
     34                          char **description,
     35                          size_t *pot_total_len,
     36                          struct TALER_Amount **pot_totals)
     37 {
     38   struct PostgresClosure *pg = cls;
     39   struct GNUNET_PQ_QueryParam params[] = {
     40     GNUNET_PQ_query_param_string (instance_id),
     41     GNUNET_PQ_query_param_uint64 (&money_pot_id),
     42     GNUNET_PQ_query_param_end
     43   };
     44   struct GNUNET_PQ_ResultSpec rs[] = {
     45     GNUNET_PQ_result_spec_string ("money_pot_name",
     46                                   name),
     47     GNUNET_PQ_result_spec_string ("money_pot_description",
     48                                   description),
     49     TALER_PQ_result_spec_array_amount_with_currency (pg->conn,
     50                                                      "pot_totals",
     51                                                      pot_total_len,
     52                                                      pot_totals),
     53     GNUNET_PQ_result_spec_end
     54   };
     55 
     56   check_connection (pg);
     57   PREPARE (pg,
     58            "select_money_pot",
     59            "SELECT"
     60            "  mp.money_pot_name"
     61            " ,mp.money_pot_description"
     62            " ,mp.pot_totals"
     63            " FROM merchant_money_pots mp"
     64            " JOIN merchant_instances mi"
     65            "   USING (merchant_serial)"
     66            " WHERE merchant_id=$1"
     67            "   AND money_pot_serial=$2;");
     68   return GNUNET_PQ_eval_prepared_singleton_select (
     69     pg->conn,
     70     "select_money_pot",
     71     params,
     72     rs);
     73 }