diff options
Diffstat (limited to 'src/exchangedb/pg_select_purse.c')
-rw-r--r-- | src/exchangedb/pg_select_purse.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_purse.c b/src/exchangedb/pg_select_purse.c new file mode 100644 index 000000000..e2a36c33e --- /dev/null +++ b/src/exchangedb/pg_select_purse.c @@ -0,0 +1,83 @@ +/* + 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 pg_select_purse.c + * @brief Implementation of the select_purse function for Postgres + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_error_codes.h" +#include "taler_dbevents.h" +#include "taler_pq_lib.h" +#include "pg_select_purse.h" +#include "pg_helper.h" + + +enum GNUNET_DB_QueryStatus +TEH_PG_select_purse ( + void *cls, + const struct TALER_PurseContractPublicKeyP *purse_pub, + struct GNUNET_TIME_Timestamp *purse_creation, + struct GNUNET_TIME_Timestamp *purse_expiration, + struct TALER_Amount *amount, + struct TALER_Amount *deposited, + struct TALER_PrivateContractHashP *h_contract_terms, + struct GNUNET_TIME_Timestamp *merge_timestamp) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_auto_from_type (purse_pub), + GNUNET_PQ_query_param_end + }; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_timestamp ("purse_expiration", + purse_expiration), + GNUNET_PQ_result_spec_timestamp ("purse_creation", + purse_creation), + TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", + amount), + TALER_PQ_RESULT_SPEC_AMOUNT ("balance", + deposited), + GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms", + h_contract_terms), + GNUNET_PQ_result_spec_allow_null ( + GNUNET_PQ_result_spec_timestamp ("merge_timestamp", + merge_timestamp), + NULL), + GNUNET_PQ_result_spec_end + }; + + PREPARE (pg, + "select_purse", + "SELECT " + " merge_pub" + ",purse_creation" + ",purse_expiration" + ",h_contract_terms" + ",amount_with_fee_val" + ",amount_with_fee_frac" + ",balance_val" + ",balance_frac" + ",merge_timestamp" + " FROM purse_requests" + " LEFT JOIN purse_merges USING (purse_pub)" + " WHERE purse_pub=$1;"); + *merge_timestamp = GNUNET_TIME_UNIT_FOREVER_TS; + return GNUNET_PQ_eval_prepared_singleton_select (pg->conn, + "select_purse", + params, + rs); +} |