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我们可以通过gdb模块的接口设计实现:新增框架默认不支持的第三方数据库驱动、对已有支持的驱动进行定制化修改等。

驱动注册

之前我们有提到Driver的驱动接口,在实现该接口之后,我们可以通过以下方法注册自定义驱动到gdb模块:

Code Block
languagego
// Register registers custom database driver to gdb.
func Register(name string, driver Driver) error

其中的驱动名称name可以是已有的驱动名称,例如mysql, mssql, pgsql等等,当出现同名的驱动注册时,新的驱动将会覆盖老的驱动。

驱动实现

开发一个自定义的驱动并注册到gdb模块中非常简单,可以参考gdb模块源码中已对接的数据库类型代码示例:

  1. https://github.com/gogf/gf/v2/blob/master/database/gdb/gdb_driver_mysql.go
  2. https://github.com/gogf/gf/v2/blob/master/database/gdb/gdb_driver_mssql.go
  3. https://github.com/gogf/gf/v2/blob/master/database/gdb/gdb_driver_pgsql.go
  4. https://github.com/gogf/gf/v2/blob/master/database/gdb/gdb_driver_oracle.go
  5. https://github.com/gogf/gf/v2/blob/master/database/gdb/gdb_driver_sqlite.go
  6. 更多: https://github.com/gogf/gf/v2/blob/master/database/gdb

需要说明的是,最常见的驱动开发或者修改方式是直接继承于现有*Core类型,因为在Driver接口中会传递该类型的对象,例如:

Code Block
languagego
// DriverMysql is the driver for mysql database.
type DriverMysql struct {
	*Core
}

// New creates and returns a database object for mysql.
// It implements the interface of gdb.Driver for extra database driver installation.
func (d *DriverMysql) New(core *Core, node *ConfigNode) (DB, error) {
	return &DriverMysql{
		Core: core,
	}, nil
}


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