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mysql.go
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mysql.go
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// Copyright 2019 GoAdmin Core Team. All rights reserved.
// Use of this source code is governed by a Apache-2.0 style
// license that can be found in the LICENSE file.
package db
import (
"database/sql"
"github.com/GoAdminGroup/go-admin/modules/config"
)
// SQLTx is an in-progress database transaction.
type SQLTx struct {
Tx *sql.Tx
}
// Mysql is a Connection of mysql.
type Mysql struct {
Base
}
// GetMysqlDB return the global mysql connection.
func GetMysqlDB() *Mysql {
return &Mysql{
Base: Base{
DbList: make(map[string]*sql.DB),
},
}
}
// Name implements the method Connection.Name.
func (db *Mysql) Name() string {
return "mysql"
}
// GetDelimiter implements the method Connection.GetDelimiter.
func (db *Mysql) GetDelimiter() string {
return "`"
}
// InitDB implements the method Connection.InitDB.
func (db *Mysql) InitDB(cfgs map[string]config.Database) Connection {
db.Configs = cfgs
db.Once.Do(func() {
for conn, cfg := range cfgs {
sqlDB, err := sql.Open("mysql", cfg.GetDSN())
if err != nil {
if sqlDB != nil {
_ = sqlDB.Close()
}
panic(err)
} else {
// Largest set up the database connection reduce time wait
sqlDB.SetMaxIdleConns(cfg.MaxIdleCon)
sqlDB.SetMaxOpenConns(cfg.MaxOpenCon)
db.DbList[conn] = sqlDB
}
if err := sqlDB.Ping(); err != nil {
panic(err)
}
}
})
return db
}
// QueryWithConnection implements the method Connection.QueryWithConnection.
func (db *Mysql) QueryWithConnection(con string, query string, args ...interface{}) ([]map[string]interface{}, error) {
return CommonQuery(db.DbList[con], query, args...)
}
// ExecWithConnection implements the method Connection.ExecWithConnection.
func (db *Mysql) ExecWithConnection(con string, query string, args ...interface{}) (sql.Result, error) {
return CommonExec(db.DbList[con], query, args...)
}
// Query implements the method Connection.Query.
func (db *Mysql) Query(query string, args ...interface{}) ([]map[string]interface{}, error) {
return CommonQuery(db.DbList["default"], query, args...)
}
// Exec implements the method Connection.Exec.
func (db *Mysql) Exec(query string, args ...interface{}) (sql.Result, error) {
return CommonExec(db.DbList["default"], query, args...)
}
// BeginTxWithReadUncommitted starts a transaction with level LevelReadUncommitted.
func (db *Mysql) BeginTxWithReadUncommitted() *sql.Tx {
return CommonBeginTxWithLevel(db.DbList["default"], sql.LevelReadUncommitted)
}
// BeginTxWithReadCommitted starts a transaction with level LevelReadCommitted.
func (db *Mysql) BeginTxWithReadCommitted() *sql.Tx {
return CommonBeginTxWithLevel(db.DbList["default"], sql.LevelReadCommitted)
}
// BeginTxWithRepeatableRead starts a transaction with level LevelRepeatableRead.
func (db *Mysql) BeginTxWithRepeatableRead() *sql.Tx {
return CommonBeginTxWithLevel(db.DbList["default"], sql.LevelRepeatableRead)
}
// BeginTx starts a transaction with level LevelDefault.
func (db *Mysql) BeginTx() *sql.Tx {
return CommonBeginTxWithLevel(db.DbList["default"], sql.LevelDefault)
}
// BeginTxWithLevel starts a transaction with given transaction isolation level.
func (db *Mysql) BeginTxWithLevel(level sql.IsolationLevel) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList["default"], level)
}
// BeginTxWithReadUncommittedAndConnection starts a transaction with level LevelReadUncommitted and connection.
func (db *Mysql) BeginTxWithReadUncommittedAndConnection(conn string) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList[conn], sql.LevelReadUncommitted)
}
// BeginTxWithReadCommittedAndConnection starts a transaction with level LevelReadCommitted and connection.
func (db *Mysql) BeginTxWithReadCommittedAndConnection(conn string) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList[conn], sql.LevelReadCommitted)
}
// BeginTxWithRepeatableReadAndConnection starts a transaction with level LevelRepeatableRead and connection.
func (db *Mysql) BeginTxWithRepeatableReadAndConnection(conn string) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList[conn], sql.LevelRepeatableRead)
}
// BeginTxAndConnection starts a transaction with level LevelDefault and connection.
func (db *Mysql) BeginTxAndConnection(conn string) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList[conn], sql.LevelDefault)
}
// BeginTxWithLevelAndConnection starts a transaction with given transaction isolation level and connection.
func (db *Mysql) BeginTxWithLevelAndConnection(conn string, level sql.IsolationLevel) *sql.Tx {
return CommonBeginTxWithLevel(db.DbList[conn], level)
}
// QueryWithTx is query method within the transaction.
func (db *Mysql) QueryWithTx(tx *sql.Tx, query string, args ...interface{}) ([]map[string]interface{}, error) {
return CommonQueryWithTx(tx, query, args...)
}
// ExecWithTx is exec method within the transaction.
func (db *Mysql) ExecWithTx(tx *sql.Tx, query string, args ...interface{}) (sql.Result, error) {
return CommonExecWithTx(tx, query, args...)
}