QSqlDriver: add Q_PROPERTY

Add Q_PROPERTY to follow the current Qt style and simplify the
documentation.

Task-number: QTBUG-120566
Change-Id: Ibbafde35bb5600453ed3a3de36b6bf2b5c560e5f
Reviewed-by: Kai Köhne <kai.koehne@qt.io>

src/sql/kernel/qsqldriver.cpp

@@ -728,16 +728,7 @@ QStringList QSqlDriver::subscribedToNotifications() const
 }
 
 /*!
-    \since 4.6
-
-    Sets the default numerical precision policy used by queries created
-    by this driver to \a precisionPolicy.
-
-    Note: Setting the default precision policy to \a precisionPolicy
-    doesn't affect any currently active queries.
-
-    \sa QSql::NumericalPrecisionPolicy, numericalPrecisionPolicy(),
-    QSqlQuery::setNumericalPrecisionPolicy(), QSqlQuery::numericalPrecisionPolicy()
+    Sets \l numericalPrecisionPolicy to \a precisionPolicy.
 */
 void QSqlDriver::setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy)
 {
@@ -746,13 +737,18 @@ void QSqlDriver::setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy prec
 }
 
 /*!
-    \since 4.6
+    \property QSqlDriver::numericalPrecisionPolicy
+    \since 6.8
 
-    Returns the current default precision policy for the database connection.
+    This property holds the precision policy for the database connection.
+    \note Setting the precision policy doesn't affect any currently active queries.
 
-    \sa QSql::NumericalPrecisionPolicy, setNumericalPrecisionPolicy(),
+    \sa QSql::NumericalPrecisionPolicy,
     QSqlQuery::numericalPrecisionPolicy(), QSqlQuery::setNumericalPrecisionPolicy()
 */
+/*!
+    Returns the \l numericalPrecisionPolicy.
+*/
 QSql::NumericalPrecisionPolicy QSqlDriver::numericalPrecisionPolicy() const
 {
     Q_D(const QSqlDriver);

src/sql/kernel/qsqldriver.h

@@ -9,6 +9,7 @@
 #include <QtCore/qstring.h>
 #include <QtCore/qstringlist.h>
 
+// clazy:excludeall=qproperty-without-notify
 QT_BEGIN_NAMESPACE
 
 
@@ -54,6 +55,8 @@ public:
         MimerSQL,
     };
 
+    Q_PROPERTY(QSql::NumericalPrecisionPolicy numericalPrecisionPolicy READ numericalPrecisionPolicy WRITE setNumericalPrecisionPolicy)
+
     explicit QSqlDriver(QObject *parent = nullptr);
     ~QSqlDriver();
     virtual bool isOpen() const;