commit c46d51edeb856453d1b3ccdabcfe7fa5f9c490cc
parent d094616fc290711cb1316bb924262c179b840412
Author: Casaburi Johannes <johannes.casaburi@students.bfh.ch>
Date: Sat, 6 Jan 2024 16:52:45 +0100
added pg logic for get charities
Diffstat:
2 files changed, 163 insertions(+), 0 deletions(-)
diff --git a/src/donaudb/pg_get_charities.c b/src/donaudb/pg_get_charities.c
@@ -0,0 +1,126 @@
+/*
+ This file is part of TALER
+ Copyright (C) 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 CHARITYABILITY 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 donaudb/pg_lookup_donation_unit_key.c
+ * @brief Implementation of the lookup_donation_unit_key function for Postgres
+ * @author Johannes Casaburi
+ */
+#include "taler/platform.h"
+#include "taler/taler_error_codes.h"
+#include "taler/taler_dbevents.h"
+#include "taler/taler_pq_lib.h"
+#include "pg_lookup_charity.h"
+#include "pg_helper.h"
+
+
+/**
+ * Closure for #get_charities_cb().
+ */
+struct GetCharitiesContext
+{
+ /**
+ * Function to call per result.
+ */
+ DONAUDB_GetCharitiesCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Flag set to #GNUNET_OK as long as everything is fine.
+ */
+ enum GNUNET_GenericReturnValue status;
+
+};
+
+
+/**
+ * Invoke the callback for each result.
+ *
+ * @param cls a `struct MissingWireContext *`
+ * @param result SQL result
+ * @param num_results number of rows in @a result
+ */
+static void
+get_charities_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct GetCharitiesContext *ctx = cls;
+
+ for (unsigned int i = 0; i < num_results; i++)
+ {
+ char *charity_name;
+ char *charity_url;
+
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ GNUNET_PQ_result_spec_string ("charity_name",
+ &charity_name),
+ GNUNET_PQ_result_spec_string ("charity_url",
+ &charity_url)
+ GNUNET_PQ_result_spec_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ ctx->status = GNUNET_SYSERR;
+ return;
+ }
+ ctx->cb (ctx->cb_cls,
+ charity_name,
+ charity_url);
+ GNUNET_PQ_cleanup_result (rs);
+ }
+}
+
+
+enum GNUNET_DB_QueryStatus
+DH_PG_get_charities (void *cls,
+ DONAUDB_GetCharitiesCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GetWireAccountsContext ctx = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .status = GNUNET_OK
+ };
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_end
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ PREPARE (pg,
+ "get_charities",
+ "SELECT"
+ " charity_name"
+ ",charity_url"
+ " FROM charities");
+ qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+ "get_charities",
+ params,
+ &get_charities_cb,
+ &ctx);
+ if (GNUNET_OK != ctx.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}
diff --git a/src/donaudb/pg_get_charities.h b/src/donaudb/pg_get_charities.h
@@ -0,0 +1,37 @@
+/*
+ This file is part of TALER
+ Copyright (C) 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 CHARITYABILITY 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 donaudb/pg_lookup_charity.h
+ * @brief implementation of the get_charities function for Postgres
+ * @author Johannes Casaburi
+ */
+#ifndef PG_GET_CHARITIES_H
+#define PG_GET_CHARITIES_H
+
+/**
+ * Obtain information about the enabled wire accounts of the exchange.
+ *
+ * @param cls closure
+ * @param cb function to call on each account
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+DH_PG_get_charities (void *cls,
+ DONAUDB_GetCharitiesCallback cb,
+ void *cb_cls);
+
+#endif
