/
errors.go
37 lines (33 loc) · 1.04 KB
/
errors.go
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package pg
import (
"errors"
"github.com/go-pg/pg/v10"
)
var (
// ErrNoRows is returned by QueryOne and ExecOne when query returned zero rows
// but at least one row is expected.
ErrNoRows = errors.New("pg: at least one row expected, none returned")
// ErrMultiRows is returned by QueryOne and ExecOne when query returned
// multiple rows but exactly one row is expected.
ErrMultiRows = errors.New("pg: many rows returned, one expected")
// ErrInvalidEnumValue typical error when the enum value is invalid
ErrInvalidEnumValue = errors.New("pg: invalid value for enum")
// ErrIntegrityViolation is returned when an integrity constraint is violated
ErrIntegrityViolation = errors.New("pg: integrity violation")
)
func convertError(err error) error {
switch err {
case pg.ErrMultiRows:
return ErrMultiRows
case pg.ErrNoRows:
return ErrNoRows
case ErrNoRows, ErrMultiRows, ErrInvalidEnumValue, nil:
return err
default:
pgErr, ok := err.(pg.Error)
if ok && pgErr.IntegrityViolation() {
return ErrIntegrityViolation
}
return err
}
}