/
connector.go
68 lines (58 loc) · 1.38 KB
/
connector.go
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package gorm
import (
"strings"
"time"
"gorm.io/driver/mysql"
"gorm.io/driver/postgres"
"gorm.io/gorm"
"gorm.io/plugin/dbresolver"
"github.com/thoohv5/orm/standard"
)
// Connect 连接
func (g *gDb) Connect(config *standard.Config, sos ...standard.ServerOption) (standard.IBuilder, error) {
var (
err error
gdb *gorm.DB
)
gdb, err = gorm.Open(getDial(config.Driver, config.Dsn), &gorm.Config{
QueryFields: true,
})
if err != nil {
return nil, err
}
_ = gdb.Use(&OpentracingPlugin{})
dsn := CopyGDb(gdb, append(sos, standard.WithIsWrite(true))...)
db, err := gdb.DB()
if err != nil {
return nil, err
}
db.SetConnMaxLifetime(time.Duration(config.ConnMaxLifeTime) * time.Second)
db.SetMaxIdleConns(config.MaxIdleConns)
db.SetMaxOpenConns(config.MaxOpenConns)
slaveDial := make([]gorm.Dialector, 0, len(config.Slave))
for _, cs := range config.Slave {
slaveDial = append(slaveDial, getDial(config.Driver, cs.Dsn))
}
// 读写分离
err = gdb.Use(dbresolver.Register(dbresolver.Config{
Replicas: slaveDial,
Policy: dbresolver.RandomPolicy{},
}))
if err != nil {
return nil, err
}
return dsn, err
}
func getDial(driver string, dsn string) (dial gorm.Dialector) {
switch strings.ToUpper(driver) {
case "MYSQL":
dial = mysql.New(mysql.Config{
DSN: dsn,
})
case "POSTGRESSQL":
dial = postgres.New(postgres.Config{
DSN: dsn,
})
}
return
}