merchant

Merchant backend to process payments, run by merchants
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pg_increment_money_pots.c (2861B)

      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_increment_money_pots.c
     18  * @brief Implementation of the increment_money_pots 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_increment_money_pots.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TMH_PG_increment_money_pots (
     31   void *cls,
     32   const char *instance_id,
     33   size_t money_pots_len,
     34   const uint64_t *money_pot_ids,
     35   const struct TALER_Amount *pot_increments)
     36 {
     37   struct PostgresClosure *pg = cls;
     38   struct GNUNET_PQ_QueryParam params[] = {
     39     GNUNET_PQ_query_param_string (instance_id),
     40     GNUNET_PQ_query_param_array_uint64 (money_pots_len,
     41                                         money_pot_ids,
     42                                         pg->conn),
     43     TALER_PQ_query_param_array_amount_with_currency (money_pots_len,
     44                                                      pot_increments,
     45                                                      pg->conn),
     46     GNUNET_PQ_query_param_end
     47   };
     48   bool not_found;
     49   struct GNUNET_PQ_ResultSpec rs[] = {
     50     GNUNET_PQ_result_spec_bool ("not_found",
     51                                 &not_found),
     52     GNUNET_PQ_result_spec_end
     53   };
     54   enum GNUNET_DB_QueryStatus qs;
     55 
     56   check_connection (pg);
     57   PREPARE (pg,
     58            "increment_money_pots",
     59            "SELECT"
     60            " out_not_found AS not_found"
     61            " FROM merchant_do_increment_money_pots"
     62            "($1,$2,$3);");
     63   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     64                                                  "increment_money_pots",
     65                                                  params,
     66                                                  rs);
     67   GNUNET_PQ_cleanup_query_params_closures (params);
     68   if (qs <= 0)
     69     return qs;
     70   if (not_found)
     71   {
     72     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
     73                 "Some money pots could not be implemented because they no longer exist. This is not a bug and expected to happen if a merchant deletes money pots that were used in orders active at the time.\n");
     74   }
     75   return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     76 }