implement leaderboard functionality

1 files changed, 4 insertions, 4 deletions

diff --git a/frontend/DB.cpp b/frontend/DB.cpp
index f40a9fd..28a1c3d 100644
--- a/frontend/DB.cpp
+++ b/frontend/DB.cpp
@@ -77,24 +77,24 @@ DBQueryRow DBStatement::row() {
 DBQueryRow::DBQueryRow(DBStatement & parent) : parent(parent) { }
 
 template <>
-const char * DBQueryRow::col<const char*>(int index, const char * const & default_value) {
+const char * DBQueryRow::col<const char*>(int index, const char * const & default_value) const {
 	int type = sqlite3_column_type(this->parent.stmt.get(), index);
 	if (type == SQLITE_NULL) return default_value;
 	return reinterpret_cast<const char *>(sqlite3_column_text(this->parent.stmt.get(), index));
 }
 template <>
-const char * DBQueryRow::col<const char*>(int index) {
+const char * DBQueryRow::col<const char*>(int index) const {
 	return this->col<const char *>(index, "");
 }
 
 template <>
-int DBQueryRow::col<int>(int index, const int & default_value) {
+int DBQueryRow::col<int>(int index, const int & default_value) const {
 	int type = sqlite3_column_type(this->parent.stmt.get(), index);
 	if (type == SQLITE_NULL) return default_value;
 	return sqlite3_column_int(this->parent.stmt.get(), index);
 }
 template <>
-int DBQueryRow::col<int>(int index) {
+int DBQueryRow::col<int>(int index) const {
 	return this->col<int>(index, 0);
 }