merchant

Merchant backend to process payments, run by merchants
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update_money_pot.c (3453B)

      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 the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15  */
     16 /**
     17  * @file src/backenddb/update_money_pot.c
     18  * @brief Implementation of the update_money_pot function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "merchant-database/update_money_pot.h"
     24 #include "helper.h"
     25 
     26 
     27 enum GNUNET_DB_QueryStatus
     28 TALER_MERCHANTDB_update_money_pot (
     29   struct TALER_MERCHANTDB_PostgresContext *pg,
     30   const char *instance_id,
     31   uint64_t money_pot_id,
     32   const char *name,
     33   const char *description,
     34   size_t opt_len,
     35   const struct TALER_Amount *old_pot_totals,
     36   size_t npt_len,
     37   const struct TALER_Amount *new_pot_totals,
     38   bool *conflict_total,
     39   bool *conflict_name)
     40 {
     41   struct GNUNET_PQ_QueryParam params[] = {
     42     GNUNET_PQ_query_param_uint64 (&money_pot_id),
     43     GNUNET_PQ_query_param_string (name),
     44     GNUNET_PQ_query_param_string (description),
     45     (NULL == old_pot_totals)
     46     ? GNUNET_PQ_query_param_null ()
     47     : TALER_PQ_query_param_array_amount_with_currency (opt_len,
     48                                                        old_pot_totals,
     49                                                        pg->conn),
     50     (NULL == new_pot_totals)
     51     ? GNUNET_PQ_query_param_null ()
     52     : TALER_PQ_query_param_array_amount_with_currency (npt_len,
     53                                                        new_pot_totals,
     54                                                        pg->conn),
     55     GNUNET_PQ_query_param_end
     56   };
     57   bool not_found;
     58   struct GNUNET_PQ_ResultSpec rs[] = {
     59     GNUNET_PQ_result_spec_bool ("conflict_total",
     60                                 conflict_total),
     61     GNUNET_PQ_result_spec_bool ("conflict_name",
     62                                 conflict_name),
     63     GNUNET_PQ_result_spec_bool ("not_found",
     64                                 &not_found),
     65     GNUNET_PQ_result_spec_end
     66   };
     67   enum GNUNET_DB_QueryStatus qs;
     68 
     69   GNUNET_assert (NULL != pg->current_merchant_id);
     70   GNUNET_assert (0 == strcmp (instance_id,
     71                               pg->current_merchant_id));
     72   check_connection (pg);
     73   TMH_PQ_prepare_anon (pg,
     74                        "SELECT"
     75                        " out_conflict_name AS conflict_name"
     76                        ",out_conflict_total AS conflict_total"
     77                        ",out_not_found AS not_found"
     78                        " FROM merchant_do_update_money_pot"
     79                        "($1,$2,$3,$4,$5);");
     80   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     81                                                  "",
     82                                                  params,
     83                                                  rs);
     84   GNUNET_PQ_cleanup_query_params_closures (params);
     85   if (qs <= 0)
     86     return qs;
     87   if (not_found)
     88     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
     89   return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
     90 }