DO NOT EVER DO THIS AT HOME

gistfile1.js

Application.Views.Network.RelationControl = (function () {
  var view = { events: {} };
  var toggleMap = [
    [['accept_profile', 'decline_profile'], ['friendship_request_block']],
    [[{ post: 'friend_profile' }, { ajaxDelete: 'unfriend_profile' }], ['trust_block', 'distrust_block']],
    [[{ post: 'subscribe_profile' }, { ajaxDelete: 'unsubscribe_profile' }], ['subscribe_block', 'unsubscribe_block']],
    [['accept_employment', 'decline_employment'], ['employment_request_block']],
    [[{'post':'create_employment'}, {'ajaxDelete':'remove_employment'}], ['employment_block']],
    [['promote_to', 'demote_from'], ['employment_role_block']]
  ];

  var _createHandler = function (togglables, method) {
    return function (e) {
      $[method](e.target.href, function () {
        _.map(togglables, function (cl) {
          this.$(e.currentTarget).closest('ul').find('.'+cl).toggle();
        });
      });
      e.preventDefault();
    };
  };

  _.map(toggleMap, function (pair) {
    var classes = pair[0], togglables = pair[1];
    _.map(classes, function (htmlClass) {
      var httpVerb;
      if (!_.isString(htmlClass)) {
        httpVerb = _.keys(htmlClass)[0];
        htmlClass = _.values(htmlClass)[0];
      } else {
        httpVerb = 'get';
      }
      var methName = htmlClass; // camelCase it
      view[methName] = _createHandler(togglables, httpVerb);
      view.events['click .'+htmlClass] = methName;
    });
  });

  return Backbone.View.extend(view);
})();