merchant

Merchant backend to process payments, run by merchants
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pg_delete_unit.c (2385B)

      1 /*
      2    This file is part of TALER
      3  Copyright (C) 2025 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 <http://www.gnu.org/licenses/>
     15  */
     16 /**
     17  * @file backenddb/pg_delete_unit.c
     18  * @brief Implementation of the delete_unit function for Postgres
     19  * @author Bohdan Potuzhnyi
     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 "pg_delete_unit.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TMH_PG_delete_unit (void *cls,
     31                     const char *instance_id,
     32                     const char *unit_id,
     33                     bool *no_instance,
     34                     bool *no_unit,
     35                     bool *builtin_conflict)
     36 {
     37   struct PostgresClosure *pg = cls;
     38   struct GNUNET_PQ_QueryParam params[] = {
     39     GNUNET_PQ_query_param_string (instance_id),
     40     GNUNET_PQ_query_param_string (unit_id),
     41     GNUNET_PQ_query_param_end
     42   };
     43   struct GNUNET_PQ_ResultSpec rs[] = {
     44     GNUNET_PQ_result_spec_bool ("out_no_instance",
     45                                 no_instance),
     46     GNUNET_PQ_result_spec_bool ("out_no_unit",
     47                                 no_unit),
     48     GNUNET_PQ_result_spec_bool ("out_builtin_conflict",
     49                                 builtin_conflict),
     50     GNUNET_PQ_result_spec_end
     51   };
     52   enum GNUNET_DB_QueryStatus qs;
     53 
     54   check_connection (pg);
     55   PREPARE (pg,
     56            "delete_unit",
     57            "SELECT"
     58            " out_no_instance"
     59            " ,out_no_unit"
     60            " ,out_builtin_conflict"
     61            " FROM merchant_do_delete_unit($1,$2);");
     62   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     63                                                  "delete_unit",
     64                                                  params,
     65                                                  rs);
     66   GNUNET_PQ_cleanup_query_params_closures (params);
     67   return qs;
     68 }