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::TEXT"
      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              : }