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_reserve_close_info.c
      18             :  * @brief Low-level (statement-level) Postgres database access for the exchange
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler_error_codes.h"
      23             : #include "taler_dbevents.h"
      24             : #include "taler_pq_lib.h"
      25             : #include "pg_select_reserve_close_info.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30           6 : TEH_PG_select_reserve_close_info (
      31             :   void *cls,
      32             :   const struct TALER_ReservePublicKeyP *reserve_pub,
      33             :   struct TALER_Amount *balance,
      34             :   struct TALER_FullPayto *payto_uri)
      35             : {
      36           6 :   struct PostgresClosure *pg = cls;
      37           6 :   struct GNUNET_PQ_QueryParam params[] = {
      38           6 :     GNUNET_PQ_query_param_auto_from_type (reserve_pub),
      39             :     GNUNET_PQ_query_param_end
      40             :   };
      41           6 :   struct GNUNET_PQ_ResultSpec rs[] = {
      42           6 :     TALER_PQ_result_spec_amount ("current_balance",
      43           6 :                                  pg->currency,
      44             :                                  balance),
      45           6 :     GNUNET_PQ_result_spec_string ("payto_uri",
      46             :                                   &payto_uri->full_payto),
      47             :     GNUNET_PQ_result_spec_end
      48             :   };
      49             : 
      50           6 :   PREPARE (pg,
      51             :            "select_reserve_close_info",
      52             :            "SELECT "
      53             :            " r.current_balance"
      54             :            ",wt.payto_uri"
      55             :            " FROM reserves r"
      56             :            " LEFT JOIN reserves_in ri"
      57             :            "   USING (reserve_pub)"
      58             :            " LEFT JOIN wire_targets wt"
      59             :            "   ON (ri.wire_source_h_payto = wt.wire_target_h_payto)"
      60             :            " WHERE r.reserve_pub=$1;");
      61           6 :   return GNUNET_PQ_eval_prepared_singleton_select (
      62             :     pg->conn,
      63             :     "select_reserve_close_info",
      64             :     params,
      65             :     rs);
      66             : }