merchant

Merchant backend to process payments, run by merchants
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lookup_order_status.c (2715B)

      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 src/backenddb/lookup_order_status.c
     18  * @brief Implementation of the lookup_order_status function for Postgres
     19  * @author Iván Ávalos
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_error_codes.h>
     23 #include <taler/taler_dbevents.h>
     24 #include <taler/taler_pq_lib.h>
     25 #include "merchant-database/lookup_order_status.h"
     26 #include "helper.h"
     27 
     28 enum GNUNET_DB_QueryStatus
     29 TALER_MERCHANTDB_lookup_order_status (struct TALER_MERCHANTDB_PostgresContext *pg,
     30                                       const char *instance_id,
     31                                       const char *order_id,
     32                                       struct TALER_PrivateContractHashP *h_contract_terms,
     33                                       bool *paid)
     34 {
     35   uint8_t paid8;
     36   enum GNUNET_DB_QueryStatus qs;
     37   struct GNUNET_PQ_QueryParam params[] = {
     38     GNUNET_PQ_query_param_string (instance_id),
     39     GNUNET_PQ_query_param_string (order_id),
     40     GNUNET_PQ_query_param_end
     41   };
     42   struct GNUNET_PQ_ResultSpec rs[] = {
     43     GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
     44                                           h_contract_terms),
     45     GNUNET_PQ_result_spec_auto_from_type ("paid",
     46                                           &paid8),
     47     GNUNET_PQ_result_spec_end
     48   };
     49 
     50   check_connection (pg);
     51   PREPARE (pg,
     52            "lookup_order_status",
     53            "SELECT"
     54            " h_contract_terms"
     55            ",paid"
     56            " FROM merchant_contract_terms"
     57            " WHERE merchant_serial="
     58            "     (SELECT merchant_serial "
     59            "        FROM merchant_instances"
     60            "        WHERE merchant_id=$1)"
     61            "   AND order_id=$2");
     62   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     63                                                  "lookup_order_status",
     64                                                  params,
     65                                                  rs);
     66   if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
     67     *paid = (0 != paid8);
     68   else
     69     *paid = false; /* just to be safe(r) */
     70   return qs;
     71 }