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/*
This file is part of TALER
Copyright (C) 2022-2024 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file backenddb/pg_lookup_contract_terms.c
* @brief Implementation of the lookup_contract_terms function for Postgres
* @author Iván Ávalos
* @author Christian Grothoff
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_lookup_contract_terms.h"
#include "pg_helper.h"
enum GNUNET_DB_QueryStatus
TMH_PG_lookup_contract_terms (
void *cls,
const char *instance_id,
const char *order_id,
json_t **contract_terms,
uint64_t *order_serial,
struct TALER_ClaimTokenP *claim_token)
{
struct PostgresClosure *pg = cls;
enum GNUNET_DB_QueryStatus qs;
struct TALER_ClaimTokenP ct;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_string (instance_id),
GNUNET_PQ_query_param_string (order_id),
GNUNET_PQ_query_param_end
};
struct GNUNET_PQ_ResultSpec rs[] = {
/* contract_terms must be first! */
TALER_PQ_result_spec_json ("contract_terms",
contract_terms),
GNUNET_PQ_result_spec_uint64 ("order_serial",
order_serial),
GNUNET_PQ_result_spec_auto_from_type ("claim_token",
&ct),
GNUNET_PQ_result_spec_end
};
check_connection (pg);
PREPARE (pg,
"lookup_contract_terms",
"SELECT"
" contract_terms"
",order_serial"
",claim_token"
" FROM merchant_contract_terms"
" WHERE order_id=$2"
" AND merchant_serial="
" (SELECT merchant_serial"
" FROM merchant_instances"
" WHERE merchant_id=$1)");
qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
"lookup_contract_terms",
params,
(NULL != contract_terms)
? rs
: &rs[1]);
if (NULL != claim_token)
*claim_token = ct;
return qs;
}
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