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             : }