/
database.go
60 lines (47 loc) · 1.13 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
package config
import (
"fmt"
"os"
"github.com/counterapi/api/pkg/models"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
// DB global database variable.
var DB *gorm.DB //nolint:gochecknoglobals // allow global DB.
// SetupDatabase sets the database up.
func SetupDatabase() (*gorm.DB, error) {
db, err := gorm.Open(postgres.New(postgres.Config{
DSN: getDBDNS(),
PreferSimpleProtocol: true, // disables implicit prepared statement usage
}), &gorm.Config{})
if err != nil {
return &gorm.DB{}, err
}
err = db.AutoMigrate(&models.Counter{})
if err != nil {
return &gorm.DB{}, err
}
err = db.AutoMigrate(&models.Count{})
if err != nil {
return &gorm.DB{}, err
}
return db, nil
}
// getDBDNS generates the database DNS.
func getDBDNS() string {
dns := fmt.Sprintf(
"host=%s port=%s",
os.Getenv("DB_HOST"),
os.Getenv("DB_PORT"),
)
if val, present := os.LookupEnv("DB_NAME"); present {
dns += " dbname=" + val
}
if val, present := os.LookupEnv("DB_USER"); present {
dns += " user=" + val
}
if val, present := os.LookupEnv("DB_PASSWORD"); present {
dns += " password=" + val
}
return dns
}