Module which augments backbone.validator

validator.js

define(function(require, exports, module) {
  var _ = require('lodash');

  var Validator = require('backbone.validator');

  // Duck-punch so that we get the errors in the right format:
  // Instead of
  //  {
  //    field1: [ "errormsg1", "errormsg2" ],
  //    field2: [ "errormsg3" ]
  //  }
  // We want
  //  [{
  //    key: "field1",
  //    msg: "errormsg1"
  //  }, {
  //    key: "field1",
  //    msg: "errormsg2"
  //  }, {
  //    key: "field2",
  //    msg: "errormsg3"
  //  }]
  var originalValidate = Validator.validate;
  Validator.validate = function(attrs, validations, context) {
    var rtn = null;
    var errors = originalValidate.call(Validator, attrs, validations, context);
    if(errors) {
      rtn = [];
      // Transform from object with nested message arrays
      // into an array of 'flat' errors
      _.each(errors, function(messages, key) {
        _.each(messages, function(msg) {
          rtn.push({
            field: key,
            msg: msg
          });
        });
      });
    }

    return rtn;
  };

  // Overrides and additions
  // Most matchers are from https://github.com/chriso/node-validator
  Validator.formats.email = /^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-](?!\.)){0,61}[a-zA-Z0-9]?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9\-](?!$)){0,61}[a-zA-Z0-9]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/;

  Validator.add('notBlank', function(value, expectation) {
    return expectation === false || (_.isString(value) && !value.match(/^[\s\t\r\n]*$/));
  }, "Can't be blank");

  Validator.add('password', function(value, expectation) {
    return expectation === false || (_.isString(value) && !value.match(/^[\s\t\r\n]*$/));
  }, "Password not valid");

  Validator.add('matches', function(value, expectation, attrs) {
    return value === attrs[expectation];
  }, "Does not match");

});

This Backbone.Validator