merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

lookup_template.c (2939B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022, 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 src/backenddb/lookup_template.c
     18  * @brief Implementation of the lookup_template function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "merchant-database/lookup_template.h"
     24 #include "helper.h"
     25 
     26 
     27 enum GNUNET_DB_QueryStatus
     28 TALER_MERCHANTDB_lookup_template (
     29   struct TALER_MERCHANTDB_PostgresContext *pg,
     30   const char *instance_id,
     31   const char *template_id,
     32   struct TALER_MERCHANTDB_TemplateDetails *td)
     33 {
     34   struct GNUNET_PQ_QueryParam params[] = {
     35     GNUNET_PQ_query_param_string (template_id),
     36     GNUNET_PQ_query_param_end
     37   };
     38   struct GNUNET_PQ_ResultSpec rs[] = {
     39     GNUNET_PQ_result_spec_string ("template_description",
     40                                   &td->template_description),
     41     GNUNET_PQ_result_spec_allow_null (
     42       GNUNET_PQ_result_spec_string ("otp_id",
     43                                     &td->otp_id),
     44       NULL),
     45     TALER_PQ_result_spec_json ("template_contract",
     46                                &td->template_contract),
     47     GNUNET_PQ_result_spec_allow_null (
     48       TALER_PQ_result_spec_json ("editable_defaults",
     49                                  &td->editable_defaults),
     50       NULL),
     51     GNUNET_PQ_result_spec_end
     52   };
     53   enum GNUNET_DB_QueryStatus qs;
     54 
     55   GNUNET_assert (NULL != pg->current_merchant_id);
     56   GNUNET_assert (0 == strcmp (instance_id,
     57                               pg->current_merchant_id));
     58   TMH_PQ_prepare_anon (pg,
     59                        "SELECT"
     60                        " mt.template_description"
     61                        ",mod.otp_id"
     62                        ",mt.template_contract::TEXT"
     63                        ",mt.editable_defaults::TEXT"
     64                        " FROM merchant_template mt"
     65                        " LEFT JOIN merchant_otp_devices mod"
     66                        "   ON (mod.otp_serial = mt.otp_device_id)"
     67                        " WHERE mt.template_id=$1");
     68   memset (td,
     69           0,
     70           sizeof (*td));
     71   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     72                                                  "",
     73                                                  params,
     74                                                  rs);
     75   GNUNET_PQ_cleanup_query_params_closures (params);
     76   return qs;
     77 }