The Daily WTF: Break my Validation

modifyValidatorValue.js

modifyValidatorValue: function (fieldName, validatorKey, key, value) {
    if (helper.isNullOrUndefined(fieldName)
        || helper.isNullOrUndefined(validatorKey)
        || helper.isNullOrUndefined(key)
        || helper.isNullOrUndefined(value)) {
        return;
    }

    // Iterate over fields
    var field;
    for (var i in this.fields) {
        if (!this.fields.hasOwnProperty(i)) {
            continue;
        }

        var field = this.fields[i];
        if (field.name !== fieldName) {
            continue;
        } else {
            break;
        }
    }

    if (!field.hasOwnProperty('validators')) {
        return;
    }

    // Iterate over validators
    var validator;
    for (var j in field.validators) {
        if (!field.validators.hasOwnProperty(j)) {
            continue;
        }

        var validator = field.validators[j];
        if (validator.key !== validatorKey) {
            continue;
        } else {
            break;
        }
    }

    if (validator.hasOwnProperty(key)) {
        validator[key] = value;
    }
}