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Diffstat (limited to 'src/backenddb/pg_lookup_order_summary.c')
-rw-r--r-- | src/backenddb/pg_lookup_order_summary.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/backenddb/pg_lookup_order_summary.c b/src/backenddb/pg_lookup_order_summary.c new file mode 100644 index 00000000..3a2a4e16 --- /dev/null +++ b/src/backenddb/pg_lookup_order_summary.c @@ -0,0 +1,75 @@ +/* + This file is part of TALER + Copyright (C) 2022 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_order_summary.c + * @brief Implementation of the lookup_order_summary function for Postgres + * @author Iván Ávalos + */ +#include "platform.h" +#include <taler/taler_error_codes.h> +#include <taler/taler_dbevents.h> +#include <taler/taler_pq_lib.h> +#include "pg_lookup_order_summary.h" +#include "pg_helper.h" + +enum GNUNET_DB_QueryStatus +TMH_PG_lookup_order_summary (void *cls, + const char *instance_id, + const char *order_id, + struct GNUNET_TIME_Timestamp *timestamp, + uint64_t *order_serial) +{ + struct PostgresClosure *pg = cls; + 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[] = { + GNUNET_PQ_result_spec_uint64 ("order_serial", + order_serial), + GNUNET_PQ_result_spec_timestamp ("creation_time", + timestamp), + GNUNET_PQ_result_spec_end + }; + + check_connection (pg); + PREPARE (pg, + "lookup_order_summary", + "(SELECT" + " creation_time" + ",order_serial" + " FROM merchant_contract_terms" + " WHERE merchant_contract_terms.merchant_serial=" + " (SELECT merchant_serial " + " FROM merchant_instances" + " WHERE merchant_id=$1)" + " AND merchant_contract_terms.order_id=$2)" + "UNION" + "(SELECT" + " creation_time" + ",order_serial" + " FROM merchant_orders" + " WHERE merchant_orders.merchant_serial=" + " (SELECT merchant_serial " + " FROM merchant_instances" + " WHERE merchant_id=$1)" + " AND merchant_orders.order_id=$2)"); + return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, + "lookup_order_summary", + params, + rs); +} |