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Base system with REST service to issue digital coins, run by the payment service provider
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update_generic_suppressed.c (2956B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 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 #include "taler/taler_pq_lib.h"
     17 #include "pg_helper.h"
     18 #include "auditor-database/update_generic_suppressed.h"
     19 
     20 struct Preparations
     21 {
     22   /**
     23    * Database reconnect counter.
     24    */
     25   unsigned long long cnt;
     26 
     27   /**
     28    * Which DB did we do prepare for.
     29    */
     30   struct TALER_AUDITORDB_PostgresContext *pg;
     31 
     32 };
     33 
     34 
     35 enum GNUNET_DB_QueryStatus
     36 TALER_AUDITORDB_update_generic_suppressed (struct
     37                                            TALER_AUDITORDB_PostgresContext *pg,
     38                                            enum
     39                                            TALER_AUDITORDB_DeletableSuppressableTables
     40                                            table,
     41                                            uint64_t row_id,
     42                                            bool suppressed)
     43 {
     44   struct GNUNET_PQ_QueryParam params[] = {
     45     GNUNET_PQ_query_param_uint64 (&row_id),
     46     GNUNET_PQ_query_param_bool (suppressed),
     47     GNUNET_PQ_query_param_end
     48   };
     49   static struct Preparations preps[
     50     TALER_AUDITORDB_DELETABLESUPPRESSABLE_TABLES_MAX];
     51 
     52   struct Preparations *prep = &preps[table];
     53   const char *table_name = TALER_AUDITORDB_get_deletable_suppressable_table_name
     54                            (
     55     table);
     56   char statement_name[256];
     57 
     58   GNUNET_snprintf (statement_name,
     59                    sizeof (statement_name),
     60                    "update_%s",
     61                    table_name);
     62   if ( (pg != prep->pg) ||
     63        (prep->cnt < pg->prep_gen) )
     64   {
     65     char sql[256];
     66     struct GNUNET_PQ_PreparedStatement ps[] = {
     67       GNUNET_PQ_make_prepare (statement_name,
     68                               sql),
     69       GNUNET_PQ_PREPARED_STATEMENT_END
     70     };
     71 
     72     GNUNET_snprintf (sql,
     73                      sizeof (sql),
     74                      "UPDATE %s SET"
     75                      " suppressed=$2"
     76                      " WHERE row_id=$1",
     77                      table_name);
     78     if (GNUNET_OK !=
     79         GNUNET_PQ_prepare_statements (pg->conn,
     80                                       ps))
     81     {
     82       GNUNET_break (0);
     83       return GNUNET_DB_STATUS_HARD_ERROR;
     84     }
     85     prep->pg = pg;
     86     prep->cnt = pg->prep_gen;
     87   }
     88   return GNUNET_PQ_eval_prepared_non_select (pg->conn,
     89                                              statement_name,
     90                                              params);
     91 }