1 files changed, 121 insertions, 0 deletions
diff --git a/src/backenddb/pg_lookup_token_family.c b/src/backenddb/pg_lookup_token_family.c
new file mode 100644
index 00000000..d2c651c9
--- /dev/null
+++ b/src/backenddb/pg_lookup_token_family.c
@@ -0,0 +1,121 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2023 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_token_family.c
+ * @brief Implementation of the lookup_token_family 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_lookup_token_family.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TMH_PG_lookup_token_family (void *cls,
+                            const char *instance_id,
+                            const char *token_family_slug,
+                            struct TALER_MERCHANTDB_TokenFamilyDetails *details)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_string (instance_id),
+    GNUNET_PQ_query_param_string (token_family_slug),
+    GNUNET_PQ_query_param_end
+  };
+
+  if (NULL == details)
+  {
+    struct GNUNET_PQ_ResultSpec rs_null[] = {
+      GNUNET_PQ_result_spec_end
+    };
+
+    check_connection (pg);
+    return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                     "lookup_token_family",
+                                                     params,
+                                                     rs_null);
+  }
+  else
+  {
+    char *kind;
+
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_string ("slug",
+                                    &details->slug),
+      GNUNET_PQ_result_spec_string ("name",
+                                    &details->name),
+      GNUNET_PQ_result_spec_string ("description",
+                                    &details->description),
+      TALER_PQ_result_spec_json ("description_i18n",
+                                 &details->description_i18n),
+      GNUNET_PQ_result_spec_timestamp ("valid_after",
+                                       &details->valid_after),
+      GNUNET_PQ_result_spec_timestamp ("valid_before",
+                                       &details->valid_before),
+      GNUNET_PQ_result_spec_relative_time ("duration",
+                                           &details->duration),
+      GNUNET_PQ_result_spec_string ("kind",
+                                    &kind),
+      GNUNET_PQ_result_spec_uint64 ("issued",
+                                    &details->issued),
+      GNUNET_PQ_result_spec_uint64 ("redeemed",
+                                    &details->redeemed),
+      GNUNET_PQ_result_spec_end
+    };
+
+    check_connection (pg);
+    PREPARE (pg,
+             "lookup_token_family",
+             "SELECT"
+             " slug"
+             ",name"
+             ",description"
+             ",description_i18n"
+             ",valid_after"
+             ",valid_before"
+             ",duration"
+             ",kind"
+             ",issued"
+             ",redeemed"
+             " FROM merchant_token_families"
+             " JOIN merchant_instances"
+             "   USING (merchant_serial)"
+             " WHERE merchant_instances.merchant_id=$1"
+             "   AND merchant_token_families.slug=$2");
+    enum GNUNET_DB_QueryStatus qs;
+    qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
+                                                   "lookup_token_family",
+                                                   params,
+                                                   rs);
+
+    if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
+    {
+      if (0 == strcmp(kind, "discount"))
+        details->kind = TALER_MERCHANTDB_TFK_Discount;
+      else if (0 == strcmp(kind, "subscription"))
+        details->kind = TALER_MERCHANTDB_TFK_Subscription;
+      else
+      {
+        GNUNET_break (0);
+        return GNUNET_DB_STATUS_HARD_ERROR;
+      }
+    }
+
+    return qs;
+  }
+}