gf/g/database/gdb/gdb_mysql.go

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// Copyright 2017 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://gitee.com/johng/gf.
package gdb
import (
"fmt"
"database/sql"
)
// 数据库链接对象
type dbMysql struct {
*dbBase
}
// 创建SQL操作对象内部采用了lazy link处理
func (db *dbMysql) Open (config *ConfigNode) (*sql.DB, error) {
var source string
if config.Linkinfo != "" {
source = config.Linkinfo
} else {
source = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=%s&multiStatements=true",
config.User, config.Pass, config.Host, config.Port, config.Name, config.Charset)
}
if db, err := sql.Open("mysql", source); err == nil {
return db, nil
} else {
return nil, err
}
}
// 获得关键字操作符
func (db *dbMysql) getChars () (charLeft string, charRight string) {
return "`", "`"
}
// 在执行sql之前对sql进行进一步处理
func (db *dbMysql) handleSqlBeforeExec(query string) string {
return query
}