Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2022 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_purge_instance.c
      18              :  * @brief Implementation of the purge_instance 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_purge_instance.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : /**
      29              :  * Purge an instance and all associated information from our database.
      30              :  * Highly likely to cause undesired data loss. Use with caution.
      31              :  *
      32              :  * @param cls closure
      33              :  * @param merchant_id identifier of the instance
      34              :  * @return database result code
      35              :  */
      36              : enum GNUNET_DB_QueryStatus
      37           13 : TMH_PG_purge_instance (void *cls,
      38              :                        const char *merchant_id)
      39              : {
      40           13 :   struct PostgresClosure *pg = cls;
      41           13 :   struct GNUNET_PQ_QueryParam params[] = {
      42           13 :     GNUNET_PQ_query_param_string (merchant_id),
      43              :     GNUNET_PQ_query_param_end
      44              :   };
      45              : 
      46           13 :   check_connection (pg);
      47           13 :   PREPARE (pg,
      48              :            "purge_instance",
      49              :            "DELETE FROM merchant_instances"
      50              :            " WHERE merchant_instances.merchant_id = $1");
      51           13 :   return GNUNET_PQ_eval_prepared_non_select (pg->conn,
      52              :                                              "purge_instance",
      53              :                                              params);
      54              : }