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QSqlDriverPlugin Class

The https:// class provides an abstract base for custom https:// plugins.

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QSqlDriverPlugin Class▲

  • Header: QSqlDriverPlugin

  • CMake:

    find_package(Qt6 REQUIRED COMPONENTS Sql)

    target_link_libraries(mytarget PRIVATE Qt6::Sql)

  • qmake: QT += sql

  • Inherits: https://

  • Group: QSqlDriverPlugin is part of plugins

Detailed Description▲

The SQL driver plugin is a simple plugin interface that makes it easy to create your own SQL driver plugins that can be loaded dynamically by Qt.

Writing a SQL plugin is achieved by subclassing this base class, reimplementing the pure virtual function https://(), and exporting the class with the https://() macro. See the SQL plugins that come with Qt for example implementations (in the plugins/src/sqldrivers subdirectory of the source distribution).

The json file containing the metadata for the plugin contains a list of keys indicating the supported sql drivers

 
Sélectionnez
{ "Keys": [ "mysqldriver" ] }

See Also▲

See also How to Create Qt Plugins

Member Function Documentation▲

 

[explicit] QSqlDriverPlugin::QSqlDriverPlugin(QObject *parent = nullptr)▲

Constructs a SQL driver plugin and sets the parent to parent. This is invoked automatically by the moc generated code that exports the plugin.

[virtual] QSqlDriverPlugin::~QSqlDriverPlugin()▲

Destroys the SQL driver plugin.

You never have to call this explicitly. Qt destroys a plugin automatically when it is no longer used.

[pure virtual] QSqlDriver *QSqlDriverPlugin::create(const QString &key)▲

Creates and returns a https:// object for the driver called key. The driver key is usually the class name of the required driver. Keys are case sensitive.

See Also▲

See also How to Create Qt Plugins

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Ce document est disponible sous la licence https:// telle que publiée par la Free Software Foundation.