1 files changed, 80 insertions, 0 deletions
diff --git a/src/backenddb/pg_update_template.c b/src/backenddb/pg_update_template.c
new file mode 100644
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--- /dev/null
+++ b/src/backenddb/pg_update_template.c
@@ -0,0 +1,80 @@
+/*
+   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_update_template.c
+ * @brief Implementation of the update_template function for Postgres
+ * @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_update_template.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TMH_PG_update_template (void *cls,
+                        const char *instance_id,
+                        const char *template_id,
+                        const struct TALER_MERCHANTDB_TemplateDetails *td)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_string (instance_id),
+    GNUNET_PQ_query_param_string (template_id),
+    GNUNET_PQ_query_param_string (td->template_description),
+    (NULL == td->otp_id)
+    ? GNUNET_PQ_query_param_null ()
+    : GNUNET_PQ_query_param_string (td->otp_id),
+    TALER_PQ_query_param_json (td->template_contract),
+    (NULL == td->editable_defaults)
+    ? GNUNET_PQ_query_param_null ()
+    : TALER_PQ_query_param_json (td->editable_defaults),
+    (NULL == td->required_currency)
+    ? GNUNET_PQ_query_param_null ()
+    : GNUNET_PQ_query_param_string (td->required_currency),
+    GNUNET_PQ_query_param_end
+  };
+
+  check_connection (pg);
+  PREPARE (pg,
+           "update_template",
+           "WITH mid AS ("
+           "  SELECT merchant_serial"
+           "    FROM merchant_instances"
+           "   WHERE merchant_id=$1)"
+           ",otp AS ("
+           "   SELECT otp_serial"
+           "     FROM merchant_otp_devices"
+           "     JOIN mid USING (merchant_serial)"
+           "    WHERE otp_id=$4)"
+           "UPDATE merchant_template SET"
+           " template_description=$3"
+           ",otp_device_id="
+           "  COALESCE((SELECT otp_serial"
+           "            FROM otp), NULL)"
+           ",template_contract=$5"
+           ",editable_defaults=$6"
+           ",required_currency=$7"
+           " WHERE merchant_serial="
+           "   (SELECT merchant_serial"
+           "      FROM mid)"
+           "   AND template_id=$2");
+  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "update_template",
+                                             params);
+}