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 select_purse.c
      18              :  * @brief Implementation of the select_purse function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/select_purse.h"
      23              : #include "helper.h"
      24              : 
      25              : 
      26              : enum GNUNET_DB_QueryStatus
      27           27 : TALER_EXCHANGEDB_select_purse (
      28              :   struct TALER_EXCHANGEDB_PostgresContext *pg,
      29              :   const struct TALER_PurseContractPublicKeyP *purse_pub,
      30              :   struct GNUNET_TIME_Timestamp *purse_creation,
      31              :   struct GNUNET_TIME_Timestamp *purse_expiration,
      32              :   struct TALER_Amount *amount,
      33              :   struct TALER_Amount *deposited,
      34              :   struct TALER_PrivateContractHashP *h_contract_terms,
      35              :   struct GNUNET_TIME_Timestamp *merge_timestamp,
      36              :   bool *purse_deleted,
      37              :   bool *purse_refunded)
      38              : {
      39           27 :   struct GNUNET_PQ_QueryParam params[] = {
      40           27 :     GNUNET_PQ_query_param_auto_from_type (purse_pub),
      41              :     GNUNET_PQ_query_param_end
      42              :   };
      43           27 :   struct GNUNET_PQ_ResultSpec rs[] = {
      44           27 :     GNUNET_PQ_result_spec_timestamp ("purse_expiration",
      45              :                                      purse_expiration),
      46           27 :     GNUNET_PQ_result_spec_timestamp ("purse_creation",
      47              :                                      purse_creation),
      48           27 :     TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      49              :                                  amount),
      50           27 :     TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
      51              :                                  deposited),
      52           27 :     GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
      53              :                                           h_contract_terms),
      54           27 :     GNUNET_PQ_result_spec_allow_null (
      55              :       GNUNET_PQ_result_spec_timestamp ("merge_timestamp",
      56              :                                        merge_timestamp),
      57              :       NULL),
      58           27 :     GNUNET_PQ_result_spec_bool ("purse_deleted",
      59              :                                 purse_deleted),
      60           27 :     GNUNET_PQ_result_spec_allow_null (
      61              :       GNUNET_PQ_result_spec_bool ("purse_refunded",
      62              :                                   purse_refunded),
      63              :       NULL),
      64              :     GNUNET_PQ_result_spec_end
      65              :   };
      66              : 
      67           27 :   PREPARE (pg,
      68              :            "select_purse",
      69              :            "SELECT "
      70              :            " pr.merge_pub"
      71              :            ",pr.purse_creation"
      72              :            ",pr.purse_expiration"
      73              :            ",pr.h_contract_terms"
      74              :            ",pr.amount_with_fee"
      75              :            ",pr.balance"
      76              :            ",pm.merge_timestamp"
      77              :            ",pd.purse_sig IS NOT NULL AS purse_deleted"
      78              :            ",pc.refunded AS purse_refunded"
      79              :            " FROM purse_requests pr"
      80              :            " LEFT JOIN purse_merges pm ON (pm.purse_pub = pr.purse_pub)"
      81              :            " LEFT JOIN purse_decision pc ON (pc.purse_pub = pr.purse_pub)"
      82              :            " LEFT JOIN purse_deletion pd ON (pd.purse_pub = pr.purse_pub)"
      83              :            " WHERE pr.purse_pub=$1;");
      84           27 :   *merge_timestamp = GNUNET_TIME_UNIT_FOREVER_TS;
      85           27 :   *purse_refunded = false;
      86           27 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      87              :                                                    "select_purse",
      88              :                                                    params,
      89              :                                                    rs);
      90              : }