jQuery Validation methods for Balanced.js

balanced-validators.js

/**
 * Balanced.js Validators
 *
 * jQuery Validation methods for use with Balanced.js
 */

;(function($) {
"use strict";

  /**
   * Validates the format of the bank account routing number
   */
  $.validator.addMethod('routingNumber', function(value, element) {
    return balanced.bankAccount.validateRoutingNumber(value);
  }, 'Please enter a valid routing number.');

  /**
   * Validates the bank account type (either "checking" or "savings")
   */
  $.validator.addMethod('accountType', function(value, element) {
    return balanced.bankAccount.validateType(value);
  }, 'Please choose a valid account type.');

  /**
   * Validates the format of the credit card number
   */
  $.validator.addMethod('creditCard', function(value, element) {
    return balanced.creditCard.isCardNumberValid(value);
  }, 'Please enter a valid credit card number.');

  /**
   * Validates the CVV2 code against the credit card number
   *
   * Provide a data-credit-card attribute with the id of the credit card number
   * field. If the attribute is absent, we'll assume it's valid if it >= 3 && <= 4
   * characters in length.
   */
  $.validator.addMethod('cvvCode', function(value, element) {
    if (!$(element).hasData('credit-card')) {
      return value.length >= 3 && value.length <= 4;
    }

    var cardNumber = $('#' + $(element).data('credit-card')).val();
    return balanced.creditCard.isSecurityCodeValid(cardNumber, value);
  }, 'Please enter a valid CVV2 code.');

  $.validator.addClassRules({
    routingNumber: { routingNumber: true },
    accountType:   { accountType: true },
    creditCard:    { creditCard: true },
    cvvCode:       { cvvCode: true }
  });
})(jQuery);