text: define(function(require, exports, module) {
  
  	var Validator = require('bootstrap.validator');
         var Notify = require('common/bootstrap-notify');
         require('jquery.sortable');
  
  	exports.run = function() {
          
  
        var sortList = function($list) {
              var data = $list.sortable("serialize").get();
              $.post($list.data('sortUrl'), {ids:data}, function(response){
                  var lessonNum = chapterNum = unitNum = 0;
  
                  $list.find('.item-lesson, .item-chapter').each(function() {
                      var $item = $(this);
                      if ($item.hasClass('item-lesson')) {
                          lessonNum ++;
                          $item.find('.number').text(lessonNum);
                      } else if ($item.hasClass('item-chapter-unit')) {
                          unitNum ++;
                          $item.find('.number').text(unitNum);
                      } else if ($item.hasClass('item-chapter')) {
                          chapterNum ++;
                          unitNum = 0;
                          $item.find('.number').text(chapterNum);
                      }
  
                  });
              });
          };
  
          var validator = new Validator({
              element: '#course-chapter-form',
              autoSubmit: false
          });
  
          validator.addItem({
              element: '#chapter-title-field',
              required: true
          });
  
          validator.on('formValidated', function(error, msg, $form) {
            if (error) {
                return ;
            }
            $('#course-chapter-btn').button('submiting').addClass('disabled');
  
            $.post($form.attr('action'), $form.serialize(), function(html) {
  
                var id = '#' + $(html).attr('id'),
                    $item = $(id);
                var $parent = $('#'+$form.data('parentid'));
                var $panel = $('.lesson-manage-panel');
                $panel.find('.empty').remove();
                if ($item.length) {
                    $item.replaceWith(html);
                    Notify.success('信息已保存');
                } else {
                   if($parent.length){
                    var add = 0;
                     $parent.nextAll().each(function(){
                       if($(this).hasClass('item-chapter  clearfix')){
                          $(this).before(html);
                          add = 1;
                          return false;
                        }
                       
                    });
                       if(add != 1 )
                          $("#course-item-list").append(html);
                     
                      var $list = $("#course-item-list");
                      sortList($list);
                     
                   }else{
                      $("#course-item-list").append(html);
                      $(".lesson-manage-panel").find('.empty').remove();
                   }
  
                    Notify.success('添加成功');
  
                }
                $(id).find('.btn-link').tooltip();
                $form.parents('.modal').modal('hide');
            });
  	
          });
  
  	};
  
  
  
  });