Line data    Source code

       1             : /*
       2             :    This file is part of TALER
       3             :    Copyright (C) 2023 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_check_transfer_exists.c
      18             :  * @brief Implementation of the check_transfer_exists 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_check_transfer_exists.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : enum GNUNET_DB_QueryStatus
      29           1 : TMH_PG_check_transfer_exists (void *cls,
      30             :                               const char *instance_id,
      31             :                               uint64_t transfer_serial_id)
      32             : {
      33           1 :   struct PostgresClosure *pg = cls;
      34           1 :   struct GNUNET_PQ_QueryParam params[] = {
      35           1 :     GNUNET_PQ_query_param_string (instance_id),
      36           1 :     GNUNET_PQ_query_param_uint64 (&transfer_serial_id),
      37             :     GNUNET_PQ_query_param_end
      38             :   };
      39           1 :   struct GNUNET_PQ_ResultSpec rs[] = {
      40             :     GNUNET_PQ_result_spec_end
      41             :   };
      42             : 
      43           1 :   check_connection (pg);
      44           1 :   PREPARE (pg,
      45             :            "check_transfer_exists",
      46             :            "SELECT"
      47             :            " 1"
      48             :            " FROM merchant_transfers"
      49             :            " JOIN merchant_accounts"
      50             :            "  USING (account_serial)"
      51             :            " WHERE"
      52             :            "   credit_serial=$2"
      53             :            "  AND"
      54             :            "   merchant_serial="
      55             :            "     (SELECT merchant_serial"
      56             :            "        FROM merchant_instances"
      57             :            "       WHERE merchant_id=$1)");
      58             : 
      59           1 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      60             :                                                    "check_transfer_exists",
      61             :                                                    params,
      62             :                                                    rs);
      63             : }