merchant

Merchant backend to process payments, run by merchants
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pg_insert_unit.c (3103B)

      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_insert_unit.c
     18  * @brief Implementation of the insert_unit function for Postgres
     19  * @author Bohdan Potuzhnyi
     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 "pg_insert_unit.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TMH_PG_insert_unit (void *cls,
     31                     const char *instance_id,
     32                     const struct TALER_MERCHANTDB_UnitDetails *ud,
     33                     bool *no_instance,
     34                     bool *conflict,
     35                     uint64_t *unit_serial)
     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_string (ud->unit),
     41     GNUNET_PQ_query_param_string (ud->unit_name_long),
     42     GNUNET_PQ_query_param_string (ud->unit_name_short),
     43     TALER_PQ_query_param_json (ud->unit_name_long_i18n),
     44     TALER_PQ_query_param_json (ud->unit_name_short_i18n),
     45     GNUNET_PQ_query_param_bool (ud->unit_allow_fraction),
     46     GNUNET_PQ_query_param_uint32 (&ud->unit_precision_level),
     47     GNUNET_PQ_query_param_bool (ud->unit_active),
     48     GNUNET_PQ_query_param_end
     49   };
     50   bool unit_serial_present = true;
     51   struct GNUNET_PQ_ResultSpec rs[] = {
     52     GNUNET_PQ_result_spec_bool ("no_instance",
     53                                 no_instance),
     54     GNUNET_PQ_result_spec_bool ("conflict",
     55                                 conflict),
     56     GNUNET_PQ_result_spec_allow_null (
     57       GNUNET_PQ_result_spec_uint64 ("unit_serial",
     58                                     unit_serial),
     59       &unit_serial_present),
     60     GNUNET_PQ_result_spec_end
     61   };
     62   enum GNUNET_DB_QueryStatus qs;
     63 
     64   *no_instance = false;
     65   *conflict = false;
     66 
     67   check_connection (pg);
     68   PREPARE (pg,
     69            "insert_unit",
     70            "SELECT"
     71            " out_no_instance AS no_instance"
     72            " ,out_conflict AS conflict"
     73            " ,out_unit_serial AS unit_serial"
     74            " FROM merchant_do_insert_unit"
     75            " ($1,$2,$3,$4,$5,$6,$7,$8,$9);");
     76   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     77                                                  "insert_unit",
     78                                                  params,
     79                                                  rs);
     80   GNUNET_PQ_cleanup_query_params_closures (params);
     81   if (! unit_serial_present)
     82     *unit_serial = 0;
     83   return qs;
     84 }