/
postgres.go
77 lines (61 loc) · 1.46 KB
/
postgres.go
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package storage
import (
"database/sql"
"fmt"
settings "github.com/hjcalderon10/bunny-backend/setting"
_ "github.com/lib/pq"
)
var postgressStorage StorageRepository
func NewPostgres() StorageRepository {
if postgressStorage != nil {
return postgressStorage
}
postgressStorage = NewPostgreStorage(settings.PostgresSetting)
return postgressStorage
}
func NewPostgreStorage(settings settings.PostgresSettings) StorageRepository {
conURL := fmt.Sprintf(
"postgres://%s:%s@%s:%s/%s?sslmode=%s&connect_timeout=%d",
settings.Username,
settings.Password,
settings.Host,
settings.Port,
settings.Name,
"disable",
settings.DbPQTimeout)
db, err := sql.Open("postgres", conURL)
if err != nil {
panic(err)
}
db.SetMaxIdleConns(settings.MaxIdleConnections)
db.SetMaxOpenConns(settings.MaxConnections)
db.SetConnMaxLifetime(settings.ConnMaxLifeTime)
return storageRepo{db}
}
func (s storageRepo) Raw(sql string, values ...interface{}) (*sql.Rows, error) {
rows, err := s.db.Query(sql, values...)
if err != nil {
return nil, err
}
return rows, nil
}
type ExectStmt func(*sql.Tx) error
func (s storageRepo) DoTransaction(fnStmt ExectStmt) error {
tx, err := s.db.Begin()
if err != nil {
return err
}
err = fnStmt(tx)
if err != nil {
tx.Rollback()
return err
}
err = tx.Commit()
if err != nil {
return err
}
return nil
}
func (s storageRepo) Exec(query string, args ...interface{}) (sql.Result, error) {
return s.db.Exec(query, args...)
}