Line data    Source code

       1             : /*
       2             :    This file is part of TALER
       3             :    Copyright (C) 2022-2024 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_lookup_contract_terms.c
      18             :  * @brief Implementation of the lookup_contract_terms function for Postgres
      19             :  * @author Iván Ávalos
      20             :  * @author Christian Grothoff
      21             :  */
      22             : #include "platform.h"
      23             : #include <taler/taler_error_codes.h>
      24             : #include <taler/taler_dbevents.h>
      25             : #include <taler/taler_pq_lib.h>
      26             : #include "pg_lookup_contract_terms.h"
      27             : #include "pg_helper.h"
      28             : 
      29             : 
      30             : enum GNUNET_DB_QueryStatus
      31         105 : TMH_PG_lookup_contract_terms (
      32             :   void *cls,
      33             :   const char *instance_id,
      34             :   const char *order_id,
      35             :   json_t **contract_terms,
      36             :   uint64_t *order_serial,
      37             :   struct TALER_ClaimTokenP *claim_token)
      38             : {
      39         105 :   struct PostgresClosure *pg = cls;
      40             :   enum GNUNET_DB_QueryStatus qs;
      41             :   struct TALER_ClaimTokenP ct;
      42         105 :   struct GNUNET_PQ_QueryParam params[] = {
      43         105 :     GNUNET_PQ_query_param_string (instance_id),
      44         105 :     GNUNET_PQ_query_param_string (order_id),
      45             :     GNUNET_PQ_query_param_end
      46             :   };
      47         105 :   struct GNUNET_PQ_ResultSpec rs[] = {
      48             :     /* contract_terms must be first! */
      49         105 :     TALER_PQ_result_spec_json ("contract_terms",
      50             :                                contract_terms),
      51         105 :     GNUNET_PQ_result_spec_uint64 ("order_serial",
      52             :                                   order_serial),
      53         105 :     GNUNET_PQ_result_spec_auto_from_type ("claim_token",
      54             :                                           &ct),
      55             :     GNUNET_PQ_result_spec_end
      56             :   };
      57             : 
      58         105 :   check_connection (pg);
      59         105 :   PREPARE (pg,
      60             :            "lookup_contract_terms",
      61             :            "SELECT"
      62             :            " contract_terms"
      63             :            ",order_serial"
      64             :            ",claim_token"
      65             :            " FROM merchant_contract_terms"
      66             :            " WHERE order_id=$2"
      67             :            "   AND merchant_serial="
      68             :            "     (SELECT merchant_serial"
      69             :            "        FROM merchant_instances"
      70             :            "        WHERE merchant_id=$1)");
      71         105 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      72             :                                                  "lookup_contract_terms",
      73             :                                                  params,
      74             :                                                  (NULL != contract_terms)
      75             :                                                    ? rs
      76             :                                                    : &rs[1]);
      77         105 :   if (NULL != claim_token)
      78           0 :     *claim_token = ct;
      79         105 :   return qs;
      80             : }