Sqlite: Add *WithTransaction fetcher

There are many simply fetch functions which can now be simplified.

Change-Id: Ibf542ee8b07a1b06ea3dae695da1f69065e9dd71
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/libs/sqlite/sqlitereadstatement.h

@@ -50,6 +50,50 @@ public:
     using Base::value;
     using Base::values;
 
+    template<typename ResultType, typename... QueryTypes>
+    auto valueWithTransaction(const QueryTypes &...queryValues)
+    {
+        DeferredTransaction transaction{Base::database()};
+
+        auto resultValue = Base::template value<ResultType>(queryValues...);
+
+        transaction.commit();
+
+        return resultValue;
+    }
+
+    template<typename ResultType, typename... QueryTypes>
+    auto valuesWithTransaction(std::size_t reserveSize, const QueryTypes &...queryValues)
+    {
+        DeferredTransaction transaction{Base::database()};
+
+        auto resultValues = Base::template values<ResultType>(reserveSize, queryValues...);
+
+        transaction.commit();
+
+        return resultValues;
+    }
+
+    template<typename Callable, typename... QueryTypes>
+    void readCallbackWithTransaction(Callable &&callable, const QueryTypes &...queryValues)
+    {
+        DeferredTransaction transaction{Base::database()};
+
+        Base::readCallback(std::forward<Callable>(callable), queryValues...);
+
+        transaction.commit();
+    }
+
+    template<typename Container, typename... QueryTypes>
+    void readToWithTransaction(Container &container, const QueryTypes &...queryValues)
+    {
+        DeferredTransaction transaction{Base::database()};
+
+        Base::readTo(container, queryValues...);
+
+        transaction.commit();
+    }
+
 protected:
     void checkIsReadOnlyStatement()
     {