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db.go
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db.go
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package postgres
import (
"database/sql"
"net/url"
"github.com/pkg/errors"
"github.com/riser-platform/riser-server/pkg/core"
// Required for pq lib dynamic driver loading
_ "github.com/lib/pq"
)
func NewDB(postgresConn string) (*sql.DB, error) {
var err error
db, err := sql.Open("postgres", postgresConn)
if err != nil {
return nil, errors.Wrap(err, "error opening connection to posgres")
}
if err = db.Ping(); err != nil {
return nil, errors.Wrap(err, "error pinging postgres")
}
return db, nil
}
func AddAuthToConnString(postgresConn string, username string, password string) (string, error) {
postgresUrl, err := url.Parse(postgresConn)
if err != nil {
return "", err
}
postgresUrl.User = url.UserPassword(username, password)
return postgresUrl.String(), nil
}
func resultHasRows(r sql.Result) bool {
if r == nil {
return false
}
rows, err := r.RowsAffected()
return err == nil && rows > 0
}
func noRowsErrorHandler(err error) error {
if err == sql.ErrNoRows {
return core.ErrNotFound
}
return errors.WithStack(err)
}