1 files changed, 78 insertions, 0 deletions
diff --git a/src/exchangedb/pg_get_wire_fee.c b/src/exchangedb/pg_get_wire_fee.c
new file mode 100644
index 00000000..4b432476
--- /dev/null
+++ b/src/exchangedb/pg_get_wire_fee.c
@@ -0,0 +1,78 @@
+/*
+   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 exchangedb/pg_get_wire_fee.c
+ * @brief Implementation of the get_wire_fee 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_get_wire_fee.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_get_wire_fee (void *cls,
+                       const char *type,
+                       struct GNUNET_TIME_Timestamp date,
+                       struct GNUNET_TIME_Timestamp *start_date,
+                       struct GNUNET_TIME_Timestamp *end_date,
+                       struct TALER_WireFeeSet *fees,
+                       struct TALER_MasterSignatureP *master_sig)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_string (type),
+    GNUNET_PQ_query_param_timestamp (&date),
+    GNUNET_PQ_query_param_end
+  };
+  struct GNUNET_PQ_ResultSpec rs[] = {
+    GNUNET_PQ_result_spec_timestamp ("start_date",
+                                     start_date),
+    GNUNET_PQ_result_spec_timestamp ("end_date",
+                                     end_date),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee",
+                                 &fees->wire),
+    TALER_PQ_RESULT_SPEC_AMOUNT ("closing_fee",
+                                 &fees->closing),
+    GNUNET_PQ_result_spec_auto_from_type ("master_sig",
+                                          master_sig),
+    GNUNET_PQ_result_spec_end
+  };
+
+
+
+      /* Used in #postgres_get_wire_fee() */
+  PREPARE(pg,
+          "get_wire_fee",
+          "SELECT "
+          " start_date"
+          ",end_date"
+          ",wire_fee_val"
+          ",wire_fee_frac"
+          ",closing_fee_val"
+          ",closing_fee_frac"
+          ",master_sig"
+          " FROM wire_fee"
+          " WHERE wire_method=$1"
+          "   AND start_date <= $2"
+          "   AND end_date > $2;");
+  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "get_wire_fee",
+                                                   params,
+                                                   rs);
+}