/
connection.go
56 lines (47 loc) · 1.13 KB
/
connection.go
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package postgresql
import (
"fmt"
"os"
"github.com/pkg/errors"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
const dsnTemplate = "host=%s user=%s password=%s dbname=%s port=%s sslmode=%s"
var (
host = "localhost"
user = "tomofiles"
password = "pc+tomofiles"
dbname = "##dbname##"
port = "5432"
sslmode = "disable"
)
// NewPostgresqlConnection .
func NewPostgresqlConnection(paramDbname string) (*gorm.DB, error) {
if envHost := os.Getenv("DB_HOST"); envHost != "" {
host = envHost
}
if envUser := os.Getenv("DB_USERNAME"); envUser != "" {
user = envUser
}
if envPassword := os.Getenv("DB_PASSWORD"); envPassword != "" {
password = envPassword
}
if envPort := os.Getenv("DB_PORT"); envPort != "" {
port = envPort
}
if envSslmode := os.Getenv("DB_SSL_ENABLED"); envSslmode != "" {
sslmode = envSslmode
}
dbname = paramDbname
dsn := fmt.Sprintf(dsnTemplate, host, user, password, dbname, port, sslmode)
db, err := gorm.Open(
postgres.Open(dsn),
&gorm.Config{
SkipDefaultTransaction: true,
},
)
if err != nil {
return nil, errors.Wrap(err, "cannot connect to Postgresql")
}
return db, nil
}