diff options
Diffstat (limited to 'src/lua')
| -rw-r--r-- | src/lua/lua_database.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/lua/lua_database.cpp b/src/lua/lua_database.cpp index 57cefbbc..d0612fdd 100644 --- a/src/lua/lua_database.cpp +++ b/src/lua/lua_database.cpp @@ -160,6 +160,19 @@ static auto push_iterator(lua_State* state, const database::Iterator& it) luaL_setmetatable(state, kDbIteratorMetatable); } +static auto db_iterate_prev(lua_State* state) -> int { + database::Iterator* it = db_check_iterator(state, 1); + std::optional<database::Record> res = (*it)--; + + if (res) { + push_lua_record(state, *res); + } else { + lua_pushnil(state); + } + + return 1; +} + static auto db_iterate(lua_State* state) -> int { database::Iterator* it = db_check_iterator(state, 1); std::optional<database::Record> res = (*it)++; @@ -186,6 +199,7 @@ static auto db_iterator_gc(lua_State* state) -> int { } static const struct luaL_Reg kDbIteratorFuncs[] = {{"next", db_iterate}, + {"prev", db_iterate_prev}, {"clone", db_iterator_clone}, {"__call", db_iterate}, {"__gc", db_iterator_gc}, |