more small tweaks

1 files changed, 3 insertions, 3 deletions

diff --git a/frontend/DB.h b/frontend/DB.h
index 2746e09..e3abfbf 100644
--- a/frontend/DB.h
+++ b/frontend/DB.h
@@ -54,7 +54,7 @@ class DBStatement {
 	friend class DBQueryRowRange;
 
 public:
-	DBStatement(DB &, const std::string & query);
+	DBStatement(const DB &, const std::string & query);
 
 public:
 	DBStatement & reset();
@@ -68,7 +68,7 @@ public:
 private:
 	std::unique_ptr<sqlite3_stmt, std::function<void(sqlite3_stmt*)>> stmt;
 	int param_index = 1;
-	DB & parent;
+	const DB & parent;
 };
 
 class DB {
@@ -76,7 +76,7 @@ class DB {
 
 public:
 	DB(const std::string & path);
-	DBStatement prepare(const std::string & query);
+	DBStatement prepare(const std::string & query) const;
 
 private:
 	std::unique_ptr<sqlite3, std::function<void(sqlite3*)>> db = NULL;