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 exchangedb/get_reserve.c
      18              :  * @brief Implementation of the get_reserve function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/get_reserve.h"
      23              : #include "helper.h"
      24              : 
      25              : enum GNUNET_DB_QueryStatus
      26           22 : TALER_EXCHANGEDB_get_reserve (struct TALER_EXCHANGEDB_PostgresContext *pg,
      27              :                               struct TALER_EXCHANGEDB_Reserve *reserve)
      28              : {
      29           22 :   struct GNUNET_PQ_QueryParam params[] = {
      30           22 :     GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
      31              :     GNUNET_PQ_query_param_end
      32              :   };
      33           22 :   struct GNUNET_PQ_ResultSpec rs[] = {
      34           22 :     TALER_PQ_result_spec_amount ("current_balance",
      35           22 :                                  pg->currency,
      36              :                                  &reserve->balance),
      37           22 :     GNUNET_PQ_result_spec_timestamp ("expiration_date",
      38              :                                      &reserve->expiry),
      39           22 :     GNUNET_PQ_result_spec_timestamp ("gc_date",
      40              :                                      &reserve->gc),
      41              :     GNUNET_PQ_result_spec_end
      42              :   };
      43              :   /* Used in #postgres_reserves_get() */
      44           22 :   PREPARE (pg,
      45              :            "get_reserve",
      46              :            "SELECT"
      47              :            " current_balance"
      48              :            ",expiration_date"
      49              :            ",gc_date"
      50              :            " FROM reserves"
      51              :            " WHERE reserve_pub=$1"
      52              :            " LIMIT 1;");
      53           22 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      54              :                                                    "get_reserve",
      55              :                                                    params,
      56              :                                                    rs);
      57              : }