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database.go
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database.go
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package xdatabase
import (
"github.com/go-xe2/x/core/exception"
"github.com/go-xe2/x/sync/xsafeMap"
"github.com/go-xe2/x/xf/ef/xqi"
)
type TDatabase struct {
*TBaseDb
}
var _ xqi.Database = (*TDatabase)(nil)
const defaultDbName = "xq.database"
var databaseInstances = xsafeMap.NewStrAnyMap()
// 获取数据库
func DB(dbName ...string) xqi.Database {
name := defaultDbName
if len(dbName) > 0 {
name = dbName[0]
}
if v := databaseInstances.Get(name); v != nil {
return v.(xqi.Database)
}
inst := newDatabase()
databaseInstances.Set(name, inst)
return inst
}
func newDatabase() *TDatabase {
inst := &TDatabase{}
base := newBaseDb(nil, inst)
inst.TBaseDb = base
return inst
}
func (db *TDatabase) Logger() xqi.DbLogger {
if db.conn == nil {
return nil
}
return db.conn.GetLogger()
}
func (db *TDatabase) Conn() xqi.DbConn {
return db.conn
}
// 表前掇
func (db *TDatabase) Prefix() string {
if db.conn == nil {
return ""
}
return db.conn.GetPrefix()
}
// 数据库驱动名称
func (db *TDatabase) Driver() string {
if db.conn == nil {
return "未配置数据库连接"
}
return db.conn.GetDriver()
}
// 创建数据库表方法
func (db *TDatabase) Create() exception.IException {
return nil
}
// 升级数据库表方法
func (db *TDatabase) Upgrade() exception.IException {
return nil
}