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-rw-r--r--src/backenddb/Makefile.am1
-rw-r--r--src/backenddb/pg_lookup_all_products.c171
-rw-r--r--src/backenddb/pg_lookup_all_products.h46
-rw-r--r--src/backenddb/pg_lookup_product.c2
-rw-r--r--src/backenddb/plugin_merchantdb_postgres.c3
5 files changed, 222 insertions, 1 deletions
diff --git a/src/backenddb/Makefile.am b/src/backenddb/Makefile.am
index defc3cf9..89be9a4f 100644
--- a/src/backenddb/Makefile.am
+++ b/src/backenddb/Makefile.am
@@ -112,6 +112,7 @@ libtaler_plugin_merchantdb_postgres_la_SOURCES = \
pg_update_template.h pg_update_template.c \
pg_lookup_templates.h pg_lookup_templates.c \
pg_lookup_template.h pg_lookup_template.c \
+ pg_lookup_all_products.h pg_lookup_all_products.c \
pg_lookup_products.h pg_lookup_products.c \
pg_lookup_product.h pg_lookup_product.c \
pg_delete_product.h pg_delete_product.c \
diff --git a/src/backenddb/pg_lookup_all_products.c b/src/backenddb/pg_lookup_all_products.c
new file mode 100644
index 00000000..29751a45
--- /dev/null
+++ b/src/backenddb/pg_lookup_all_products.c
@@ -0,0 +1,171 @@
+/*
+ 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 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_all_products.c
+ * @brief Implementation of the lookup_all_products 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_products.h"
+#include "pg_helper.h"
+
+/**
+ * Context used for TMH_PG_lookup_all_products().
+ */
+struct LookupProductsContext
+{
+ /**
+ * Function to call with the results.
+ */
+ TALER_MERCHANTDB_ProductCallback cb;
+
+ /**
+ * Closure for @a cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Did database result extraction fail?
+ */
+ bool extract_failed;
+};
+
+
+/**
+ * Function to be called with the results of a SELECT statement
+ * that has returned @a num_results results about products.
+ *
+ * @param[in,out] cls of type `struct LookupProductsContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+lookup_products_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct LookupProductsContext *plc = cls;
+
+ for (unsigned int i = 0; i < num_results; i++)
+ {
+ char *product_id;
+ uint64_t product_serial;
+ struct TALER_MERCHANTDB_ProductDetails pd;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ GNUNET_PQ_result_spec_string ("product_id",
+ &product_id),
+ GNUNET_PQ_result_spec_uint64 ("product_serial",
+ &product_serial),
+ GNUNET_PQ_result_spec_string ("description",
+ &pd.description),
+ TALER_PQ_result_spec_json ("description_i18n",
+ &pd.description_i18n),
+ GNUNET_PQ_result_spec_string ("unit",
+ &pd.unit),
+ TALER_PQ_result_spec_amount_with_currency ("price",
+ &pd.price),
+ TALER_PQ_result_spec_json ("taxes",
+ &pd.taxes),
+ GNUNET_PQ_result_spec_uint64 ("total_stock",
+ &pd.total_stock),
+ GNUNET_PQ_result_spec_uint64 ("total_sold",
+ &pd.total_sold),
+ GNUNET_PQ_result_spec_uint64 ("total_lost",
+ &pd.total_lost),
+ GNUNET_PQ_result_spec_string ("image",
+ &pd.image),
+ TALER_PQ_result_spec_json ("address",
+ &pd.address),
+ GNUNET_PQ_result_spec_timestamp ("next_restock",
+ &pd.next_restock),
+ GNUNET_PQ_result_spec_uint32 ("minimum_age",
+ &pd.minimum_age),
+ GNUNET_PQ_result_spec_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ plc->extract_failed = true;
+ return;
+ }
+ plc->cb (plc->cb_cls,
+ product_serial,
+ product_id,
+ &pd);
+ GNUNET_PQ_cleanup_result (rs);
+ }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TMH_PG_lookup_all_products (void *cls,
+ const char *instance_id,
+ TALER_MERCHANTDB_ProductCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct LookupProductsContext plc = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ /* Can be overwritten by the lookup_products_cb */
+ .extract_failed = false,
+ };
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_string (instance_id),
+ GNUNET_PQ_query_param_end
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ check_connection (pg);
+ PREPARE (pg,
+ "lookup_all_products",
+ "SELECT"
+ " description"
+ ",description_i18n"
+ ",unit"
+ ",price"
+ ",taxes"
+ ",total_stock"
+ ",total_sold"
+ ",total_lost"
+ ",image"
+ ",merchant_inventory.address"
+ ",next_restock"
+ ",minimum_age"
+ ",product_id"
+ ",product_serial"
+ " FROM merchant_inventory"
+ " JOIN merchant_instances"
+ " USING (merchant_serial)"
+ " WHERE merchant_instances.merchant_id=$1");
+ qs = GNUNET_PQ_eval_prepared_multi_select (
+ pg->conn,
+ "lookup_all_products",
+ params,
+ &lookup_products_cb,
+ &plc);
+ /* If there was an error inside lookup_products_cb, return a hard error. */
+ if (plc.extract_failed)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}
diff --git a/src/backenddb/pg_lookup_all_products.h b/src/backenddb/pg_lookup_all_products.h
new file mode 100644
index 00000000..390fa60d
--- /dev/null
+++ b/src/backenddb/pg_lookup_all_products.h
@@ -0,0 +1,46 @@
+/*
+ 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 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_all_products.h
+ * @brief implementation of the lookup_all_products function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_LOOKUP_ALL_PRODUCTS_H
+#define PG_LOOKUP_ALL_PRODUCTS_H
+
+#include <taler/taler_util.h>
+#include <taler/taler_json_lib.h>
+#include "taler_merchantdb_plugin.h"
+
+/**
+ * Lookup all of the products the given instance has configured.
+ *
+ * @param cls closure
+ * @param instance_id instance to lookup products for
+ * @param offset transfer_serial number of the transfer we want to offset from
+ * @param limit number of entries to return, negative for descending,
+ * positive for ascending
+ * @param cb function to call on all products found
+ * @param cb_cls closure for @a cb
+ * @return database result code
+ */
+enum GNUNET_DB_QueryStatus
+TMH_PG_lookup_all_products (void *cls,
+ const char *instance_id,
+ TALER_MERCHANTDB_ProductCallback cb,
+ void *cb_cls);
+
+#endif
diff --git a/src/backenddb/pg_lookup_product.c b/src/backenddb/pg_lookup_product.c
index 65a3c0e5..a078cf8e 100644
--- a/src/backenddb/pg_lookup_product.c
+++ b/src/backenddb/pg_lookup_product.c
@@ -60,7 +60,7 @@ TMH_PG_lookup_product (void *cls,
GNUNET_PQ_result_spec_string ("unit",
&pd->unit),
TALER_PQ_result_spec_amount_with_currency ("price",
- &pd->price),
+ &pd->price),
TALER_PQ_result_spec_json ("taxes",
&pd->taxes),
GNUNET_PQ_result_spec_uint64 ("total_stock",
diff --git a/src/backenddb/plugin_merchantdb_postgres.c b/src/backenddb/plugin_merchantdb_postgres.c
index e5f3f2a1..4a03dbfe 100644
--- a/src/backenddb/plugin_merchantdb_postgres.c
+++ b/src/backenddb/plugin_merchantdb_postgres.c
@@ -63,6 +63,7 @@
#include "pg_inactivate_account.h"
#include "pg_activate_account.h"
#include "pg_lookup_products.h"
+#include "pg_lookup_all_products.h"
#include "pg_lookup_product.h"
#include "pg_delete_product.h"
#include "pg_insert_product.h"
@@ -407,6 +408,8 @@ libtaler_plugin_merchantdb_postgres_init (void *cls)
= &TMH_PG_update_transfer_status;
plugin->lookup_products
= &TMH_PG_lookup_products;
+ plugin->lookup_all_products
+ = &TMH_PG_lookup_all_products;
plugin->lookup_product
= &TMH_PG_lookup_product;
plugin->delete_product
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-22 06:05:36 +0000