Line data    Source code

       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 src/backenddb/get_exists_donau_instance.c
      18              :  * @brief Implementation of the get_exists_donau_instance function for Postgres
      19              :  * @author Christian Grothoff
      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 "merchant-database/get_exists_donau_instance.h"
      26              : #include "helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30            4 : TALER_MERCHANTDB_get_exists_donau_instance (
      31              :   struct TALER_MERCHANTDB_PostgresContext *pg,
      32              :   const struct TALER_MerchantPublicKeyP *merchant_pub,
      33              :   const char *donau_url,
      34              :   uint64_t charity_id)
      35              : {
      36            4 :   struct GNUNET_PQ_QueryParam params[] = {
      37            4 :     GNUNET_PQ_query_param_string (donau_url),
      38            4 :     GNUNET_PQ_query_param_uint64 (&charity_id),
      39              :     GNUNET_PQ_query_param_end
      40              :   };
      41            4 :   struct GNUNET_PQ_ResultSpec rs[] = {
      42              :     GNUNET_PQ_result_spec_end
      43              :   };
      44              : 
      45            4 :   GNUNET_assert (NULL != pg->current_merchant_id);
      46            4 :   GNUNET_assert (0 ==
      47              :                  GNUNET_memcmp (merchant_pub,
      48              :                                 &pg->current_merchant_pub));
      49            4 :   TMH_PQ_prepare_anon (pg,
      50              :                        "SELECT 1"
      51              :                        " FROM merchant_donau_instances"
      52              :                        " WHERE donau_url=$1"
      53              :                        "   AND charity_id=$2");
      54            4 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      55              :                                                    "",
      56              :                                                    params,
      57              :                                                    rs);
      58              : }