2 files changed, 35 insertions, 0 deletions
diff --git a/src/sql/kernel/qsqldatabase.cpp b/src/sql/kernel/qsqldatabase.cpp
index 2c7b4b83db..12ab9671b5 100644
--- a/src/sql/kernel/qsqldatabase.cpp
+++ b/src/sql/kernel/qsqldatabase.cpp
@@ -1380,6 +1380,40 @@ QSqlDatabase QSqlDatabase::cloneDatabase(const QSqlDatabase &other, const QStrin
 }
 
 /*!
+    \since 5.13
+    \overload
+
+    Clones the database connection \a other and stores it as \a
+    connectionName. All the settings from the original database, e.g.
+    databaseName(), hostName(), etc., are copied across. Does nothing
+    if \a other is an invalid database. Returns the newly created
+    database connection.
+
+    \note The new connection has not been opened. Before using the new
+    connection, you must call open().
+
+    This overload is useful when cloning the database in another thread to the
+    one that is used by the database represented by \a other.
+*/
+
+QSqlDatabase QSqlDatabase::cloneDatabase(const QString &other, const QString &connectionName)
+{
+    const QConnectionDict *dict = dbDict();
+    Q_ASSERT(dict);
+
+    dict->lock.lockForRead();
+    QSqlDatabase otherDb = dict->value(other);
+    dict->lock.unlock();
+    if (!otherDb.isValid())
+        return QSqlDatabase();
+
+    QSqlDatabase db(otherDb.driverName());
+    db.d->copy(otherDb.d);
+    QSqlDatabasePrivate::addDatabase(db, connectionName);
+    return db;
+}
+
+/*!
     \since 4.4
 
     Returns the connection name, which may be empty.  \note The
diff --git a/src/sql/kernel/qsqldatabase.h b/src/sql/kernel/qsqldatabase.h
index 3aadab9b2f..f233c72c19 100644
--- a/src/sql/kernel/qsqldatabase.h
+++ b/src/sql/kernel/qsqldatabase.h
@@ -118,6 +118,7 @@ public:
     static QSqlDatabase addDatabase(QSqlDriver* driver,
                                  const QString& connectionName = QLatin1String(defaultConnection));
     static QSqlDatabase cloneDatabase(const QSqlDatabase &other, const QString& connectionName);
+    static QSqlDatabase cloneDatabase(const QString &other, const QString& connectionName);
     static QSqlDatabase database(const QString& connectionName = QLatin1String(defaultConnection),
                                  bool open = true);
     static void removeDatabase(const QString& connectionName);