Merge commit 'efcea3a80da7c4479d5fe168435ecc9fd06bdc72' as 'subprojects/boost-sqlite'

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
new file mode 100644
index 0000000..c16bf27
--- /dev/null
+++ b/subprojects/boost-sqlite/src/meta_data.cpp
@@ -0,0 +1,83 @@
+//
+// 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
+