-
-
Notifications
You must be signed in to change notification settings - Fork 277
/
database.go
103 lines (80 loc) · 2.12 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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
package service
import (
"context"
"github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
"github.com/c9s/rockhopper/v2"
mysqlMigrations "github.com/c9s/bbgo/pkg/migrations/mysql"
sqlite3Migrations "github.com/c9s/bbgo/pkg/migrations/sqlite3"
)
// reflect cache for database
var dbCache = NewReflectCache()
type DatabaseService struct {
Driver string
DSN string
DB *sqlx.DB
migrationPackages []string
}
func NewDatabaseService(driver, dsn string) *DatabaseService {
if driver == "mysql" {
var err error
dsn, err = ReformatMysqlDSN(dsn)
if err != nil {
// incorrect mysql dsn is logical exception
panic(err)
}
}
return &DatabaseService{
Driver: driver,
DSN: dsn,
}
}
func (s *DatabaseService) Connect() error {
var err error
s.DB, err = sqlx.Connect(s.Driver, s.DSN)
return err
}
func (s *DatabaseService) Insert(record interface{}) error {
sql := dbCache.InsertSqlOf(record)
_, err := s.DB.NamedExec(sql, record)
return err
}
func (s *DatabaseService) AddMigrationPackages(pkgNames ...string) {
s.migrationPackages = append(s.migrationPackages, pkgNames...)
}
func (s *DatabaseService) Close() error {
return s.DB.Close()
}
func (s *DatabaseService) Upgrade(ctx context.Context) error {
dialect, err := rockhopper.LoadDialect(s.Driver)
if err != nil {
return err
}
var migrations rockhopper.MigrationSlice
switch s.Driver {
case "sqlite3":
migrations = sqlite3Migrations.Migrations()
case "mysql":
migrations = mysqlMigrations.Migrations()
}
// sqlx.DB is different from sql.DB
rh := rockhopper.New(s.Driver, dialect, s.DB.DB, rockhopper.TableName)
if err := rh.Touch(ctx); err != nil {
return err
}
if len(migrations) == 0 {
return nil
}
pkgNames := append([]string{rockhopper.DefaultPackageName}, s.migrationPackages...)
return rockhopper.Upgrade(ctx, rh, migrations.FilterPackage(pkgNames))
}
func ReformatMysqlDSN(dsn string) (string, error) {
config, err := mysql.ParseDSN(dsn)
if err != nil {
return "", err
}
// we need timestamp and datetime fields to be parsed into time.Time struct
config.ParseTime = true
dsn = config.FormatDSN()
return dsn, nil
}