jq-idealform-test/js/extensions/ajax/ajax.ext.js

module.exports = {

  name: 'ajax',

  methods: {

    // @extend
    _init: function() {

      $.extend($.idealforms, { _requests: {} });

      $.idealforms.errors.ajax = $.idealforms.errors.ajax || 'Loading...';

      $.extend($.idealforms.rules, {

        ajax: function(input) {

          var self = this
            , $field = this._getField(input)
            , url = $(input).data('idealforms-ajax')
            , userError = $.idealforms._getKey('errors.'+ input.name +'.ajaxError', self.opts)
            , requests = $.idealforms._requests
            , data = {};

          data[input.name] = input.value;

          $field.addClass('ajax');

          if (requests[input.name]) requests[input.name].abort();

          requests[input.name] = $.post(url, data, function(resp) {

            if (resp === true) {
              $field.data('idealforms-valid', true);
              self._handleError(input);
              self._handleStyle(input);
            } else {
              self._handleError(input, userError);
            }

            self.opts.onValidate.call(self, input, 'ajax', resp);

            $field.removeClass('ajax');

          }, 'json');

          return false;
        }
      });
    },

    // @extend
    _validate: function(input, rule) {
      if (rule != 'ajax' && $.idealforms._requests[input.name]) {
        $.idealforms._requests[input.name].abort();
        this._getField(input).removeClass('ajax');
      }
    }

  }
};