/
database.go
64 lines (54 loc) · 1.71 KB
/
database.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
package database
import (
"time"
"github.com/elton/project-layout/configs"
"github.com/elton/project-layout/pkg/logger"
"gorm.io/driver/mysql"
"gorm.io/gorm"
gormLogger "gorm.io/gorm/logger"
)
var (
// DB is the database connection
DB *gorm.DB
)
func init() {
if DB == nil {
DB, _ = InitDatabase()
}
}
// InitDatabase initial the database
func InitDatabase() (*gorm.DB, error) {
mysqlConfig := mysql.Config{
DSN: configs.AppCfg.Database.Dsn, // DSN data source name
DefaultStringSize: 191, // string 类型字段的默认长度
SkipInitializeWithVersion: false, // 根据版本自动配置
}
var logLevel gormLogger.Interface
switch configs.AppCfg.Database.LogLevel {
case "info":
logLevel = gormLogger.Default.LogMode(gormLogger.Info)
case "warn":
logLevel = gormLogger.Default.LogMode(gormLogger.Warn)
case "error":
logLevel = gormLogger.Default.LogMode(gormLogger.Error)
case "silent":
logLevel = gormLogger.Default.LogMode(gormLogger.Silent)
}
db, err := gorm.Open(mysql.New(mysqlConfig), &gorm.Config{
DisableForeignKeyConstraintWhenMigrating: true,
Logger: logLevel,
})
if err != nil {
logger.Sugar.Errorf("Unable to connect to database: %s", err.Error())
return nil, err
}
sqlDB, err := db.DB()
// SetMaxIdleConns 设置空闲连接池中连接的最大数量
sqlDB.SetMaxIdleConns(10)
// SetMaxOpenConns 设置打开数据库连接的最大数量。
sqlDB.SetMaxOpenConns(100)
// SetConnMaxLifetime 设置了连接可复用的最大时间。
sqlDB.SetConnMaxLifetime(time.Hour)
logger.Sugar.Infof("Connected to database: %s", configs.AppCfg.Database.Dsn)
return db, nil
}