Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2022, 2026 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/delete_order.c
      18              :  * @brief Implementation of the delete_order function for Postgres
      19              :  * @author Iván Ávalos
      20              :  */
      21              : #include "platform.h"
      22              : #include <taler/taler_pq_lib.h>
      23              : #include "merchant-database/delete_order.h"
      24              : #include "helper.h"
      25              : 
      26              : 
      27              : enum GNUNET_DB_QueryStatus
      28           18 : TALER_MERCHANTDB_delete_order (
      29              :   struct TALER_MERCHANTDB_PostgresContext *pg,
      30              :   const char *instance_id,
      31              :   const char *order_id,
      32              :   bool force)
      33              : {
      34           18 :   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
      35           18 :   struct GNUNET_PQ_QueryParam params[] = {
      36           18 :     GNUNET_PQ_query_param_string (order_id),
      37           18 :     GNUNET_PQ_query_param_absolute_time (&now),
      38           18 :     GNUNET_PQ_query_param_bool (force),
      39              :     GNUNET_PQ_query_param_end
      40              :   };
      41              :   bool deleted;
      42           18 :   struct GNUNET_PQ_ResultSpec rs[] = {
      43           18 :     GNUNET_PQ_result_spec_bool ("deleted",
      44              :                                 &deleted),
      45              :     GNUNET_PQ_result_spec_end
      46              :   };
      47              :   enum GNUNET_DB_QueryStatus qs;
      48              : 
      49           18 :   GNUNET_assert (NULL != pg->current_merchant_id);
      50           18 :   GNUNET_assert (0 == strcmp (instance_id,
      51              :                               pg->current_merchant_id));
      52              :   /* Note: this MUST be a single stored procedure: deleting the order and
      53              :      the associated contract terms in two separate statements would run in
      54              :      two separate transactions (the caller does not open one), and a failure
      55              :      between them would orphan the contract terms. */
      56           18 :   TMH_PQ_prepare_anon (pg,
      57              :                        "SELECT"
      58              :                        " out_deleted AS deleted"
      59              :                        " FROM merchant_do_delete_order"
      60              :                        "($1,$2,$3);");
      61           18 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      62              :                                                  "",
      63              :                                                  params,
      64              :                                                  rs);
      65           18 :   if (qs <= 0)
      66            1 :     return qs;
      67              :   return deleted
      68              :          ? GNUNET_DB_STATUS_SUCCESS_ONE_RESULT
      69           17 :          : GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
      70              : }