Line data    Source code

       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             : /**
      17             :  * @file backenddb/pg_select_category_by_name.c
      18             :  * @brief Implementation of the select_category_by_name function for Postgres
      19             :  * @author Christian Grothoff
      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_select_category_by_name.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30           0 : TMH_PG_select_category_by_name (
      31             :   void *cls,
      32             :   const char *instance_id,
      33             :   const char *category_name,
      34             :   json_t **name_i18n,
      35             :   uint64_t *category_id)
      36             : {
      37           0 :   struct PostgresClosure *pg = cls;
      38           0 :   struct GNUNET_PQ_QueryParam params[] = {
      39           0 :     GNUNET_PQ_query_param_string (instance_id),
      40           0 :     GNUNET_PQ_query_param_string (category_name),
      41             :     GNUNET_PQ_query_param_end
      42             :   };
      43           0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      44           0 :     GNUNET_PQ_result_spec_uint64 ("category_serial",
      45             :                                   category_id),
      46           0 :     TALER_PQ_result_spec_json ("category_name_i18n",
      47             :                                name_i18n),
      48             :     GNUNET_PQ_result_spec_end
      49             :   };
      50             : 
      51           0 :   check_connection (pg);
      52           0 :   PREPARE (pg,
      53             :            "select_category_by_name",
      54             :            "SELECT"
      55             :            " category_serial"
      56             :            ",category_name_i18n"
      57             :            " FROM merchant_categories mc"
      58             :            " JOIN merchant_instances mi"
      59             :            "   USING (merchant_serial)"
      60             :            " WHERE mi.merchant_id=$1"
      61             :            "   AND mc.category_name=$2");
      62           0 :   return GNUNET_PQ_eval_prepared_singleton_select (
      63             :     pg->conn,
      64             :     "select_category_by_name",
      65             :     params,
      66             :     rs);
      67             : }