jQuery.Validator onFieldValidatedHandler

bootstrap.onFieldValidatedHandler.js

    var setValidationStatusFor = function($field, isValid, errorMessage) {
        var
            $formgroup = $field.closest(".form-group"),
            $helpBlock = $formgroup.find(".help-block");

        if (isValid) {
            if ($helpBlock.data().hasShownErrorBefore) {
                $helpBlock.text($helpBlock.data().originalText);
            }
            $formgroup.removeClass("has-error");
        } else {
            if (!$helpBlock.data().hasShownErrorBefore) {
                $helpBlock.data().hasShownErrorBefore = true;
                $helpBlock.data().originalText = $helpBlock.text();
            }
            $helpBlock.text(errorMessage);
            $formgroup.addClass("has-error");
        }
    };

    var handleFieldValidationResult = function($element, isValid, result) {
        var errorMessage = result.messages[0];
        setValidationStatusFor($element, isValid, errorMessage);
    };
    
    var validatorCfg = {
        useInlineErrors: true,
        onFieldValidated: handleFieldValidationResult
    };