merchant

Merchant backend to process payments, run by merchants
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pg_lookup_order_status_by_serial.c (2600B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022-2025 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_lookup_order_status_by_serial.c
     18  * @brief Implementation of the lookup_order_status_by_serial function for Postgres
     19  * @author Iván Ávalos
     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_lookup_order_status_by_serial.h"
     26 #include "pg_helper.h"
     27 
     28 enum GNUNET_DB_QueryStatus
     29 TMH_PG_lookup_order_status_by_serial (
     30   void *cls,
     31   const char *instance_id,
     32   uint64_t order_serial,
     33   char **order_id,
     34   struct TALER_PrivateContractHashP *h_contract_terms,
     35   bool *paid)
     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_uint64 (&order_serial),
     41     GNUNET_PQ_query_param_end
     42   };
     43   struct GNUNET_PQ_ResultSpec rs[] = {
     44     GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
     45                                           h_contract_terms),
     46     GNUNET_PQ_result_spec_string ("order_id",
     47                                   order_id),
     48     GNUNET_PQ_result_spec_bool ("paid",
     49                                 paid),
     50     GNUNET_PQ_result_spec_end
     51   };
     52 
     53   check_connection (pg);
     54   *paid = false; /* just to be safe(r) */
     55   PREPARE (pg,
     56            "lookup_order_status_by_serial",
     57            "SELECT"
     58            " h_contract_terms"
     59            ",order_id"
     60            ",paid"
     61            " FROM merchant_contract_terms"
     62            " WHERE merchant_serial="
     63            "     (SELECT merchant_serial "
     64            "        FROM merchant_instances"
     65            "        WHERE merchant_id=$1)"
     66            "   AND order_serial=$2");
     67   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     68                                                    "lookup_order_status_by_serial",
     69                                                    params,
     70                                                    rs);
     71 }