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 pg_select_purse.c
      18             :  * @brief Implementation of the select_purse function for Postgres
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "taler/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_select_purse.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30          27 : TEH_PG_select_purse (
      31             :   void *cls,
      32             :   const struct TALER_PurseContractPublicKeyP *purse_pub,
      33             :   struct GNUNET_TIME_Timestamp *purse_creation,
      34             :   struct GNUNET_TIME_Timestamp *purse_expiration,
      35             :   struct TALER_Amount *amount,
      36             :   struct TALER_Amount *deposited,
      37             :   struct TALER_PrivateContractHashP *h_contract_terms,
      38             :   struct GNUNET_TIME_Timestamp *merge_timestamp,
      39             :   bool *purse_deleted,
      40             :   bool *purse_refunded)
      41             : {
      42          27 :   struct PostgresClosure *pg = cls;
      43          27 :   struct GNUNET_PQ_QueryParam params[] = {
      44          27 :     GNUNET_PQ_query_param_auto_from_type (purse_pub),
      45             :     GNUNET_PQ_query_param_end
      46             :   };
      47          27 :   struct GNUNET_PQ_ResultSpec rs[] = {
      48          27 :     GNUNET_PQ_result_spec_timestamp ("purse_expiration",
      49             :                                      purse_expiration),
      50          27 :     GNUNET_PQ_result_spec_timestamp ("purse_creation",
      51             :                                      purse_creation),
      52          27 :     TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      53             :                                  amount),
      54          27 :     TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
      55             :                                  deposited),
      56          27 :     GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
      57             :                                           h_contract_terms),
      58          27 :     GNUNET_PQ_result_spec_allow_null (
      59             :       GNUNET_PQ_result_spec_timestamp ("merge_timestamp",
      60             :                                        merge_timestamp),
      61             :       NULL),
      62          27 :     GNUNET_PQ_result_spec_bool ("purse_deleted",
      63             :                                 purse_deleted),
      64          27 :     GNUNET_PQ_result_spec_allow_null (
      65             :       GNUNET_PQ_result_spec_bool ("purse_refunded",
      66             :                                   purse_refunded),
      67             :       NULL),
      68             :     GNUNET_PQ_result_spec_end
      69             :   };
      70             : 
      71          27 :   PREPARE (pg,
      72             :            "select_purse",
      73             :            "SELECT "
      74             :            " pr.merge_pub"
      75             :            ",pr.purse_creation"
      76             :            ",pr.purse_expiration"
      77             :            ",pr.h_contract_terms"
      78             :            ",pr.amount_with_fee"
      79             :            ",pr.balance"
      80             :            ",pm.merge_timestamp"
      81             :            ",pd.purse_sig IS NOT NULL AS purse_deleted"
      82             :            ",pc.refunded AS purse_refunded"
      83             :            " FROM purse_requests pr"
      84             :            " LEFT JOIN purse_merges pm ON (pm.purse_pub = pr.purse_pub)"
      85             :            " LEFT JOIN purse_decision pc ON (pc.purse_pub = pr.purse_pub)"
      86             :            " LEFT JOIN purse_deletion pd ON (pd.purse_pub = pr.purse_pub)"
      87             :            " WHERE pr.purse_pub=$1;");
      88          27 :   *merge_timestamp = GNUNET_TIME_UNIT_FOREVER_TS;
      89          27 :   *purse_refunded = false;
      90          27 :   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      91             :                                                    "select_purse",
      92             :                                                    params,
      93             :                                                    rs);
      94             : }