Go ozzo-validation translator (using ozzo-validatlion v4 and above)

translator.go

import "github.com/go-ozzo/ozzo-validation/v4"

// Translator is the interface that need to be implemented if we
// need to error translation feature.
type Translator interface {
	TranslateStructFieldErr(field string, err validation.Error) (string, error)
	TranslateSingleFieldErr(err validation.Error) (string, error)
}

// Translate get a translator that must implemented Translator and
// return translated errors.
func Translate(e validation.Error, t Translator) (string, error) {
	return t.TranslateSingleFieldErr(e)
}

// Translate function recursively translate all ozzo-validtion errors.
func TranslateErrors(es validation.Errors, t Translator) (map[string]interface{}, error) {
	var errCollection = make(map[string]interface{})
	var err error

	for k, e := range es {
		if errors, ok := e.(validation.Errors); ok {
			errCollection[k], err = TranslateErrors(errors, t)

			if err != nil {
				return nil, err
			}

		} else if ve, ok := e.(validation.Error); ok {
			errCollection[k], err = t.TranslateStructFieldErr(k, ve)

			if err != nil {
				return nil, err
			}

		} else {
			errCollection[k] = e
		}
	}

	return errCollection, nil
}