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-rw-r--r--subprojects/boost-sqlite/src/meta_data.cpp83
1 files changed, 83 insertions, 0 deletions
diff --git a/subprojects/boost-sqlite/src/meta_data.cpp b/subprojects/boost-sqlite/src/meta_data.cpp
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+//
+// Copyright (c) 2022 Klemens Morgenstern (klemens.morgenstern@gmx.net)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+
+#include <boost/sqlite/meta_data.hpp>
+
+BOOST_SQLITE_BEGIN_NAMESPACE
+
+
+
+
+auto table_column_meta_data(connection& conn,
+ cstring_ref db_name, cstring_ref table_name, cstring_ref column_name,
+ system::error_code & ec, error_info &ei) -> column_meta_data
+{
+ const char * data_type= "", *collation = "";
+ int nn, pk, ai;
+
+ int res = sqlite3_table_column_metadata(conn.handle(), db_name.c_str(), table_name.c_str(),
+ column_name.c_str(),
+ &data_type, &collation, &nn, &pk, &ai);
+
+ if (res != SQLITE_OK)
+ {
+ BOOST_SQLITE_ASSIGN_EC(ec, res);
+ ei.set_message(sqlite3_errmsg(conn.handle()));
+ }
+
+ return {data_type, collation, nn != 0, pk != 0, ai != 0};
+}
+
+
+
+auto table_column_meta_data(connection& conn,
+ cstring_ref table_name, cstring_ref column_name,
+ system::error_code & ec, error_info &ei) -> column_meta_data
+{
+ const char * data_type= "", *collation = "";
+ int nn, pk, ai;
+
+ int res = sqlite3_table_column_metadata(conn.handle(), nullptr, table_name.c_str(), column_name.c_str(),
+ &data_type, &collation, &nn, &pk, &ai);
+
+ if (res != SQLITE_OK)
+ {
+ BOOST_SQLITE_ASSIGN_EC(ec, res);
+ ei.set_message(sqlite3_errmsg(conn.handle()));
+ }
+
+ return {data_type, collation, nn != 0, pk != 0, ai != 0};
+}
+
+
+
+
+auto table_column_meta_data(connection& conn,
+ cstring_ref db_name, cstring_ref table_name, cstring_ref column_name) -> column_meta_data
+{
+ system::error_code ec;
+ error_info ei;
+ auto res = table_column_meta_data(conn, db_name, table_name, column_name, ec, ei);
+ if (ec)
+ throw_exception(system::system_error(ec, ei.message()));
+ return res;
+}
+
+auto table_column_meta_data(connection& conn,
+ cstring_ref table_name, cstring_ref column_name) -> column_meta_data
+{
+ system::error_code ec;
+ error_info ei;
+ auto res = table_column_meta_data(conn, table_name, column_name, ec, ei);
+ if (ec)
+ throw_exception(system::system_error(ec, ei.message()));
+ return res;
+}
+
+BOOST_SQLITE_END_NAMESPACE
+